{"product_id":"apera-ph8500-pw-portable-pure-water-ph-meter-kit","title":"Apera PH8500-PW Portable pH Meter Kit with LabSen 803 Pure Water Electrode","description":"\u003cdiv id=\"bts-ph8500-pw-description\" style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;width:100%;max-width:1400px;margin:0 auto;color:#26332C;font-size:1rem;line-height:1.75;\"\u003e\n\u003csection style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;padding:clamp(20px,4vw,48px);border:1px solid #B7D0BF;background:#F1F7F3;border-radius:14px;\"\u003e\u003cdiv style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;display:flex;flex-wrap:wrap;align-items:center;gap:clamp(24px,4vw,48px);\"\u003e\n\u003cdiv style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;flex:1 1 340px;min-width:0;\"\u003e\n\u003cp style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;font-size:.76rem;font-weight:600;letter-spacing:.12em;text-transform:uppercase;color:#245B45;margin:0 0 12px;\"\u003eAPERA INSTRUMENTS \/ PH8500-PW \/ AI5556\u003c\/p\u003e\n\u003ch2 style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;font-size:clamp(24px,4vw,34px);font-weight:600;line-height:1.2;letter-spacing:-.02em;color:#245B45;margin:0 0 20px;\"\u003eLow-ionic water deserves\u003cbr\u003ea purpose-built reference.\u003c\/h2\u003e\n\u003cp style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;font-size:1rem;line-height:1.75;margin:0 0 16px;\"\u003eThe PH8500-PW pairs Apera’s portable, USB-enabled PH8500 meter with the LabSen 803 pH\/temperature electrode for pure and low-ionic-strength water. Its cylindrical glass membrane and adjustable sleeve junction address a measurement that can be unsettled by weak ionic contact and small changes in sample handling. This is a refillable glass-electrode system for careful water testing, with an integrated temperature sensor and a practical path from field readings to computer review.\u003c\/p\u003e\n\u003cp style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;font-size:1rem;line-height:1.75;margin:0 0 16px;\"\u003eChoose AI5556 when the water sample, rather than portability alone, determines the electrode. The supplied LabSen 803 is replacement model AI3137, rated for 1–11 pH and 0–80°C. Those are the working probe limits, not the meter’s wider display capability. Automatic temperature compensation supports electrode response; it does not eliminate changes in the sample’s own pH caused by temperature, contamination or exposure to air.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;flex:1 1 340px;min-width:0;\"\u003e\u003cfigure style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;margin:0;min-width:0;\"\u003e\u003cimg alt=\"PH8500-PW portable meter and LabSen 803 glass electrode shown with water\" decoding=\"async\" height=\"1600\" loading=\"lazy\" sizes=\"(max-width:600px) calc(100vw - 80px), 560px\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0896\/1579\/4474\/files\/apera-ph8500-pw-hero-20261015-8500.webp?v=1792098186\u0026amp;width=1000\" srcset=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0896\/1579\/4474\/files\/apera-ph8500-pw-hero-20261015-8500.webp?v=1792098186\u0026amp;width=360 360w, https:\/\/cdn.shopify.com\/s\/files\/1\/0896\/1579\/4474\/files\/apera-ph8500-pw-hero-20261015-8500.webp?v=1792098186\u0026amp;width=640 640w, https:\/\/cdn.shopify.com\/s\/files\/1\/0896\/1579\/4474\/files\/apera-ph8500-pw-hero-20261015-8500.webp?v=1792098186\u0026amp;width=1000 1000w\" style=\"display:block;width:100%;max-width:340px;height:auto;object-fit:contain;margin:0 auto;box-sizing:border-box;\" width=\"1600\"\u003e\u003cfigcaption style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;font-size:.86rem;line-height:1.65;color:#5D6C63;margin-top:12px;\"\u003ePH8500-PW with its supplied LabSen 803. Glass and water illustrate use and are not included accessories.\u003c\/figcaption\u003e\u003c\/figure\u003e\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/section\u003e\u003cdetails id=\"bts-8500-kit-guide\" style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;border:1px solid #FF931A;border-radius:10px;margin:24px 0;background:white;\"\u003e\u003csummary style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;display:flex;justify-content:space-between;gap:16px;padding:20px;background:#FF931A;color:#172b4d;border-radius:10px;cursor:pointer;line-height:1.5;\"\u003e\u003cspan style=\"flex:1;min-width:0;\"\u003e\u003cspan style=\"display:block;font-size:clamp(17px,2.6vw,21px);font-weight:700;\"\u003eWhich 8500 portable configuration fits my work?\u003c\/span\u003e\u003cspan class=\"bts-sp-when-closed\" style=\"display:block;font-size:.88rem;margin-top:5px;\"\u003eClick or tap to compare all nine configurations, including harsh-chemistry kits\u003c\/span\u003e\u003cspan class=\"bts-sp-when-open\" style=\"font-size:.88rem;\"\u003eClick or tap here to close the guide\u003c\/span\u003e\u003c\/span\u003e\u003cspan aria-hidden=\"true\" class=\"bts-sp-toggle\" style=\"flex:0 0 38px;width:38px;height:38px;display:flex;align-items:center;justify-content:center;border-radius:50%;background:white;font-size:27px;\"\u003e\u003c\/span\u003e\u003c\/summary\u003e\u003cdiv style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;padding:20px;\"\u003e\n\u003cp style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;font-size:1rem;line-height:1.75;margin:0 0 16px;\"\u003eEach card opens that model page. Match the supplied electrode and documented sample method. Different configurations are not interchangeable upgrades, and optional accessories are not supplied unless the exact kit contents say so.\u003c\/p\u003e\n\u003cdiv style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;display:flex;flex-wrap:wrap;gap:14px;\"\u003e\n\u003ca class=\"bts-8500-kit-link\" data-8500-kit=\"PH8500\" href=\"https:\/\/bluetigerscientific.com\/products\/apera-ph8500-portable-ph-meter-kit\" style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;display:flex;align-items:flex-start;gap:14px;flex:1 1 300px;min-width:0;padding:18px;border:1px solid #e0e0e0;background:white;border-radius:9px;text-decoration:none;color:#26332C;\"\u003e\u003cimg alt=\"Apera PH8500\" height=\"72\" loading=\"lazy\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0896\/1579\/4474\/files\/apera-ph8500-hero-20261015-8500.webp?v=1792098186\u0026amp;width=200\" style=\"width:72px;height:72px;flex:0 0 72px;object-fit:contain;background:white;\" width=\"72\"\u003e\u003cdiv style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;flex:1;min-width:0;\"\u003e\n\u003ch3 style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;font-size:1.1rem;font-weight:700;line-height:1.3;margin:0 0 4px;color:#245B45;\"\u003ePH8500\u003c\/h3\u003e\n\u003cp style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;font-size:.76rem;margin:0 0 9px;\"\u003eAI5520\u003c\/p\u003e\n\u003cp style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;font-size:.95rem;font-weight:600;line-height:1.5;margin:0 0 6px;\"\u003eGeneral portable pH\u003c\/p\u003e\n\u003cp style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;font-size:.86rem;line-height:1.65;margin:0 0 12px;\"\u003e201T-F general-water pH\/temperature electrode.\u003c\/p\u003e\n\u003cspan style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;display:inline-block;padding:6px 9px;border-radius:5px;background:#FFF0DD;font-size:.85rem;font-weight:700;\"\u003eView PH8500 →\u003c\/span\u003e\n\u003c\/div\u003e\u003c\/a\u003e\u003ca class=\"bts-8500-kit-link\" data-8500-kit=\"EC8500\" href=\"https:\/\/bluetigerscientific.com\/products\/apera-ec8500-portable-conductivity-tds-salinity-meter-kit\" style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;display:flex;align-items:flex-start;gap:14px;flex:1 1 300px;min-width:0;padding:18px;border:1px solid #e0e0e0;background:white;border-radius:9px;text-decoration:none;color:#26332C;\"\u003e\u003cimg alt=\"Apera EC8500\" height=\"72\" loading=\"lazy\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0896\/1579\/4474\/files\/apera-ec8500-hero-20261015-8500.webp?v=1792098186\u0026amp;width=200\" style=\"width:72px;height:72px;flex:0 0 72px;object-fit:contain;background:white;\" width=\"72\"\u003e\u003cdiv style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;flex:1;min-width:0;\"\u003e\n\u003ch3 style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;font-size:1.1rem;font-weight:700;line-height:1.3;margin:0 0 4px;color:#245B45;\"\u003eEC8500\u003c\/h3\u003e\n\u003cp style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;font-size:.76rem;margin:0 0 9px;\"\u003eAI5522\u003c\/p\u003e\n\u003cp style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;font-size:.95rem;font-weight:600;line-height:1.5;margin:0 0 6px;\"\u003eConductivity and derived values\u003c\/p\u003e\n\u003cp style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;font-size:.86rem;line-height:1.65;margin:0 0 12px;\"\u003e2301T-S K=1 conductivity\/temperature electrode.\u003c\/p\u003e\n\u003cspan style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;display:inline-block;padding:6px 9px;border-radius:5px;background:#FFF0DD;font-size:.85rem;font-weight:700;\"\u003eView EC8500 →\u003c\/span\u003e\n\u003c\/div\u003e\u003c\/a\u003e\u003ca class=\"bts-8500-kit-link\" data-8500-kit=\"PC8500\" href=\"https:\/\/bluetigerscientific.com\/products\/apera-pc8500-portable-ph-conductivity-tds-salinity-meter-kit\" style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;display:flex;align-items:flex-start;gap:14px;flex:1 1 300px;min-width:0;padding:18px;border:1px solid #e0e0e0;background:white;border-radius:9px;text-decoration:none;color:#26332C;\"\u003e\u003cimg alt=\"Apera PC8500\" height=\"72\" loading=\"lazy\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0896\/1579\/4474\/files\/apera-pc8500-hero-20261015-8500.webp?v=1792098186\u0026amp;width=200\" style=\"width:72px;height:72px;flex:0 0 72px;object-fit:contain;background:white;\" width=\"72\"\u003e\u003cdiv style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;flex:1;min-width:0;\"\u003e\n\u003ch3 style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;font-size:1.1rem;font-weight:700;line-height:1.3;margin:0 0 4px;color:#245B45;\"\u003ePC8500\u003c\/h3\u003e\n\u003cp style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;font-size:.76rem;margin:0 0 9px;\"\u003eAI5524\u003c\/p\u003e\n\u003cp style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;font-size:.95rem;font-weight:600;line-height:1.5;margin:0 0 6px;\"\u003eSeparate pH and EC workflows\u003c\/p\u003e\n\u003cp style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;font-size:.86rem;line-height:1.65;margin:0 0 12px;\"\u003e201T-F and 2301T-S, two distinct electrodes.\u003c\/p\u003e\n\u003cspan style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;display:inline-block;padding:6px 9px;border-radius:5px;background:#FFF0DD;font-size:.85rem;font-weight:700;\"\u003eView PC8500 →\u003c\/span\u003e\n\u003c\/div\u003e\u003c\/a\u003e\u003ca aria-current=\"page\" class=\"bts-8500-kit-link\" data-8500-kit=\"PH8500-PW\" href=\"https:\/\/bluetigerscientific.com\/products\/apera-ph8500-pw-portable-pure-water-ph-meter-kit\" style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;display:flex;align-items:flex-start;gap:14px;flex:1 1 300px;min-width:0;padding:18px;border:2px solid #FF931A;background:#FFF9F0;border-radius:9px;text-decoration:none;color:#26332C;\"\u003e\u003cimg alt=\"Apera PH8500-PW\" height=\"72\" loading=\"lazy\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0896\/1579\/4474\/files\/apera-ph8500-pw-hero-20261015-8500.webp?v=1792098186\u0026amp;width=200\" style=\"width:72px;height:72px;flex:0 0 72px;object-fit:contain;background:white;\" width=\"72\"\u003e\u003cdiv style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;flex:1;min-width:0;\"\u003e\n\u003ch3 style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;font-size:1.1rem;font-weight:700;line-height:1.3;margin:0 0 4px;color:#245B45;\"\u003ePH8500-PW\u003c\/h3\u003e\n\u003cp style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;font-size:.76rem;margin:0 0 9px;\"\u003eAI5556\u003c\/p\u003e\n\u003cp style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;font-size:.95rem;font-weight:600;line-height:1.5;margin:0 0 6px;\"\u003eLow ionic strength water\u003c\/p\u003e\n\u003cp style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;font-size:.86rem;line-height:1.65;margin:0 0 12px;\"\u003eLabSen 803 refillable sleeve-junction electrode.\u003c\/p\u003e\n\u003cspan style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;display:inline-block;padding:6px 9px;border-radius:5px;background:#FFF0DD;font-size:.85rem;font-weight:700;\"\u003eCurrent item\u003c\/span\u003e\n\u003c\/div\u003e\u003c\/a\u003e\u003ca class=\"bts-8500-kit-link\" data-8500-kit=\"PH8500-WW\" href=\"https:\/\/bluetigerscientific.com\/products\/apera-ph8500-ww-portable-wastewater-ph-meter-kit\" style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;display:flex;align-items:flex-start;gap:14px;flex:1 1 300px;min-width:0;padding:18px;border:1px solid #e0e0e0;background:white;border-radius:9px;text-decoration:none;color:#26332C;\"\u003e\u003cimg alt=\"Apera PH8500-WW\" height=\"72\" loading=\"lazy\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0896\/1579\/4474\/files\/apera-ph8500-ww-hero-20261015-8500.webp?v=1792098186\u0026amp;width=200\" style=\"width:72px;height:72px;flex:0 0 72px;object-fit:contain;background:white;\" width=\"72\"\u003e\u003cdiv style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;flex:1;min-width:0;\"\u003e\n\u003ch3 style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;font-size:1.1rem;font-weight:700;line-height:1.3;margin:0 0 4px;color:#245B45;\"\u003ePH8500-WW\u003c\/h3\u003e\n\u003cp style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;font-size:.76rem;margin:0 0 9px;\"\u003eAI5559\u003c\/p\u003e\n\u003cp style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;font-size:.95rem;font-weight:600;line-height:1.5;margin:0 0 6px;\"\u003eSuspensions and wastewater\u003c\/p\u003e\n\u003cp style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;font-size:.86rem;line-height:1.65;margin:0 0 12px;\"\u003eLabSen 333 open-junction polymer-reference electrode.\u003c\/p\u003e\n\u003cspan style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;display:inline-block;padding:6px 9px;border-radius:5px;background:#FFF0DD;font-size:.85rem;font-weight:700;\"\u003eView PH8500-WW →\u003c\/span\u003e\n\u003c\/div\u003e\u003c\/a\u003e\u003ca class=\"bts-8500-kit-link\" data-8500-kit=\"PH8500-MS\" href=\"https:\/\/bluetigerscientific.com\/products\/apera-ph8500-ms-portable-semi-micro-ph-meter-kit\" style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;display:flex;align-items:flex-start;gap:14px;flex:1 1 300px;min-width:0;padding:18px;border:1px solid #e0e0e0;background:white;border-radius:9px;text-decoration:none;color:#26332C;\"\u003e\u003cimg alt=\"Apera PH8500-MS\" height=\"72\" loading=\"lazy\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0896\/1579\/4474\/files\/apera-ph8500-ms-hero-20261015-8500.webp?v=1792098186\u0026amp;width=200\" style=\"width:72px;height:72px;flex:0 0 72px;object-fit:contain;background:white;\" width=\"72\"\u003e\u003cdiv style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;flex:1;min-width:0;\"\u003e\n\u003ch3 style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;font-size:1.1rem;font-weight:700;line-height:1.3;margin:0 0 4px;color:#245B45;\"\u003ePH8500-MS\u003c\/h3\u003e\n\u003cp style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;font-size:.76rem;margin:0 0 9px;\"\u003eAI5554\u003c\/p\u003e\n\u003cp style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;font-size:.95rem;font-weight:600;line-height:1.5;margin:0 0 6px;\"\u003eSmall-volume samples\u003c\/p\u003e\n\u003cp style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;font-size:.86rem;line-height:1.65;margin:0 0 12px;\"\u003eLabSen 243-6 plus included semi-micro container.\u003c\/p\u003e\n\u003cspan style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;display:inline-block;padding:6px 9px;border-radius:5px;background:#FFF0DD;font-size:.85rem;font-weight:700;\"\u003eView PH8500-MS →\u003c\/span\u003e\n\u003c\/div\u003e\u003c\/a\u003e\n\u003c\/div\u003e\n\n\u003cp style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;font-size:.78rem;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:#245B45;margin:24px 0 12px;padding-bottom:6px;border-bottom:2px solid #B7D0BF;\"\u003eHarsh-chemistry kits\u003c\/p\u003e\n\u003cdiv style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;display:flex;flex-wrap:wrap;gap:14px;\"\u003e\n\u003ca class=\"bts-8500-kit-link\" data-8500-kit=\"PH8500-HF\" href=\"https:\/\/bluetigerscientific.com\/products\/apera-ph8500-hf-portable-strong-acid-hf-ph-meter-kit\" style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;display:flex;align-items:flex-start;gap:14px;flex:1 1 300px;min-width:0;padding:18px;border:1px solid #e0e0e0;background:white;border-radius:9px;text-decoration:none;color:#26332C;\"\u003e\u003cimg alt=\"Apera PH8500\" height=\"72\" loading=\"lazy\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0896\/1579\/4474\/files\/apera-ph8500-hero-20261015-8500.webp?v=1792098186\u0026amp;width=200\" style=\"width:72px;height:72px;flex:0 0 72px;object-fit:contain;background:white;\" width=\"72\"\u003e\u003cdiv style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;flex:1;min-width:0;\"\u003e\n\u003ch3 style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;font-size:1.1rem;font-weight:700;line-height:1.3;margin:0 0 4px;color:#245B45;\"\u003ePH8500-HF\u003c\/h3\u003e\n\u003cp style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;font-size:.76rem;margin:0 0 9px;\"\u003eAI5525\u003c\/p\u003e\n\u003cp style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;font-size:.95rem;font-weight:600;line-height:1.5;margin:0 0 6px;\"\u003eStrong acid \u0026amp; HF\u003c\/p\u003e\n\u003cp style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;font-size:.86rem;line-height:1.65;margin:0 0 12px;\"\u003eLabSen 833: HF-type glass, ceramic junction.\u003c\/p\u003e\n\u003cspan style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;display:inline-block;padding:6px 9px;border-radius:5px;background:#FFF0DD;font-size:.85rem;font-weight:700;\"\u003eView PH8500-HF →\u003c\/span\u003e\n\u003c\/div\u003e\u003c\/a\u003e\n\u003ca class=\"bts-8500-kit-link\" data-8500-kit=\"PH8500-SA\" href=\"https:\/\/bluetigerscientific.com\/products\/apera-ph8500-sa-portable-strong-alkali-high-salinity-ph-meter-kit\" style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;display:flex;align-items:flex-start;gap:14px;flex:1 1 300px;min-width:0;padding:18px;border:1px solid #e0e0e0;background:white;border-radius:9px;text-decoration:none;color:#26332C;\"\u003e\u003cimg alt=\"Apera PH8500\" height=\"72\" loading=\"lazy\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0896\/1579\/4474\/files\/apera-ph8500-hero-20261015-8500.webp?v=1792098186\u0026amp;width=200\" style=\"width:72px;height:72px;flex:0 0 72px;object-fit:contain;background:white;\" width=\"72\"\u003e\u003cdiv style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;flex:1;min-width:0;\"\u003e\n\u003ch3 style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;font-size:1.1rem;font-weight:700;line-height:1.3;margin:0 0 4px;color:#245B45;\"\u003ePH8500-SA\u003c\/h3\u003e\n\u003cp style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;font-size:.76rem;margin:0 0 9px;\"\u003eAI5523\u003c\/p\u003e\n\u003cp style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;font-size:.95rem;font-weight:600;line-height:1.5;margin:0 0 6px;\"\u003eStrong alkali \u0026amp; high salinity\u003c\/p\u003e\n\u003cp style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;font-size:.86rem;line-height:1.65;margin:0 0 12px;\"\u003eLabSen 843: HA (high-alkali) glass, ceramic junction.\u003c\/p\u003e\n\u003cspan style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;display:inline-block;padding:6px 9px;border-radius:5px;background:#FFF0DD;font-size:.85rem;font-weight:700;\"\u003eView PH8500-SA →\u003c\/span\u003e\n\u003c\/div\u003e\u003c\/a\u003e\n\u003ca class=\"bts-8500-kit-link\" data-8500-kit=\"PH8500-HT\" href=\"https:\/\/bluetigerscientific.com\/products\/apera-ph8500-ht-portable-high-temperature-caustic-ph-meter-kit\" style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;display:flex;align-items:flex-start;gap:14px;flex:1 1 300px;min-width:0;padding:18px;border:1px solid #e0e0e0;background:white;border-radius:9px;text-decoration:none;color:#26332C;\"\u003e\u003cimg alt=\"Apera PH8500\" height=\"72\" loading=\"lazy\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0896\/1579\/4474\/files\/apera-ph8500-hero-20261015-8500.webp?v=1792098186\u0026amp;width=200\" style=\"width:72px;height:72px;flex:0 0 72px;object-fit:contain;background:white;\" width=\"72\"\u003e\u003cdiv style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;flex:1;min-width:0;\"\u003e\n\u003ch3 style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;font-size:1.1rem;font-weight:700;line-height:1.3;margin:0 0 4px;color:#245B45;\"\u003ePH8500-HT\u003c\/h3\u003e\n\u003cp style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;font-size:.76rem;margin:0 0 9px;\"\u003eAI5566\u003c\/p\u003e\n\u003cp style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;font-size:.95rem;font-weight:600;line-height:1.5;margin:0 0 6px;\"\u003eHot, complex \u0026amp; caustic liquids\u003c\/p\u003e\n\u003cp style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;font-size:.86rem;line-height:1.65;margin:0 0 12px;\"\u003eLabSen 863: PHY glass, PTFE ring junction.\u003c\/p\u003e\n\u003cspan style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;display:inline-block;padding:6px 9px;border-radius:5px;background:#FFF0DD;font-size:.85rem;font-weight:700;\"\u003eView PH8500-HT →\u003c\/span\u003e\n\u003c\/div\u003e\u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/details\u003e\u003csection style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;padding:clamp(28px,5vw,56px) 0;border-bottom:1px solid #B7D0BF;\"\u003e\u003ch2 style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;font-size:clamp(24px,4vw,34px);font-weight:600;line-height:1.2;letter-spacing:-.02em;color:#245B45;margin:0 0 20px;\"\u003eChoose the right configuration.\u003c\/h2\u003e\n\u003cdiv style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;display:flex;flex-wrap:wrap;gap:16px;\"\u003e\n\u003cdiv style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;flex:1 1 240px;min-width:0;padding:24px;background:#fff;border:1px solid #DCE6DF;border-radius:10px;\"\u003e\n\u003ch3 style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;font-size:1.07rem;font-weight:600;color:#245B45;margin:0 0 12px;\"\u003eAdjustable contact with the sample\u003c\/h3\u003e\n\u003cp style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;font-size:1rem;line-height:1.75;margin:0 0 16px;\"\u003eThe LabSen 803 combines an L-type cylindrical glass membrane with a movable glass sleeve and silver-ion-trap reference. Adjusting sleeve tightness changes reference electrolyte flow, a useful distinction for low-ion samples. A looser sleeve is not a universal accuracy setting: it uses reference solution faster and requires recalibration after adjustment. Keep the actual sample conditions and the electrode’s response under review instead of treating a timed reading as automatically valid.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;flex:1 1 240px;min-width:0;padding:24px;background:#fff;border:1px solid #DCE6DF;border-radius:10px;\"\u003e\n\u003ch3 style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;font-size:1.07rem;font-weight:600;color:#245B45;margin:0 0 12px;\"\u003ePortable controls, deliberate recording\u003c\/h3\u003e\n\u003cp style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;font-size:1rem;line-height:1.75;margin:0 0 16px;\"\u003eA backlit LCD, folding stand and IP57 meter enclosure support a portable working station. The meter holds 500 sets of data with manual or interval recording and user-set date and time. Record stabilized readings and check the clock before a series of samples. The protective enclosure does not remove the need to keep connectors dry or protect the glass electrode from impact during transport and measurement.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;flex:1 1 240px;min-width:0;padding:24px;background:#fff;border:1px solid #DCE6DF;border-radius:10px;\"\u003e\n\u003ch3 style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;font-size:1.07rem;font-weight:600;color:#245B45;margin:0 0 12px;\"\u003eA wired route to reviewable results\u003c\/h3\u003e\n\u003cp style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;font-size:1rem;line-height:1.75;margin:0 0 16px;\"\u003eUse the USB connection with PC-Link to review readings on a computer. Current Web PC-Link supports a compatible desktop Chrome or Edge workflow on Windows or Mac, CSV export and browser printing; saving a report as PDF depends on the browser and operating system. New readings logged while connected go to software rather than meter memory. Export before closing the session. This is not Bluetooth, ZenTest or an immutable electronic audit system.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/section\u003e\u003csection style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;padding:clamp(28px,5vw,56px) 0;border-bottom:1px solid #B7D0BF;\"\u003e\u003cdiv style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;display:flex;flex-wrap:wrap;align-items:center;gap:clamp(24px,4vw,48px);\"\u003e\n\u003cdiv style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;flex:1 1 340px;min-width:0;\"\u003e\n\u003ch2 style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;font-size:clamp(24px,4vw,34px);font-weight:600;line-height:1.2;letter-spacing:-.02em;color:#245B45;margin:0 0 20px;\"\u003eKnow exactly what is supplied.\u003c\/h2\u003e\n\u003cdiv aria-label=\"Included item table\" role=\"region\" style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;overflow-x:auto;width:100%;max-width:100%;\" tabindex=\"0\"\u003e\u003ctable style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;width:100%;border-collapse:collapse;font-size:1rem;border:1px solid #e0e0e0;table-layout:fixed;\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth scope=\"col\" style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;background:#f5f5f5;text-align:left;padding:12px;font-size:1rem;font-weight:700;border:1px solid #e0e0e0;width:50%;overflow-wrap:anywhere;min-width:0;\"\u003eIncluded item\u003c\/th\u003e\n\u003cth scope=\"col\" style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;background:#f5f5f5;text-align:left;padding:12px;font-size:1rem;font-weight:700;border:1px solid #e0e0e0;width:50%;overflow-wrap:anywhere;min-width:0;\"\u003eOrder contents\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr style=\"background:#fff;\"\u003e\n\u003ctd style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;padding:12px;font-size:1rem;line-height:1.6;vertical-align:top;border:1px solid #e0e0e0;width:32%;font-weight:600;width:50%;overflow-wrap:anywhere;min-width:0;\"\u003ePH8500 portable meter\u003c\/td\u003e\n\u003ctd style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;padding:12px;font-size:1rem;line-height:1.6;vertical-align:top;border:1px solid #e0e0e0;width:50%;overflow-wrap:anywhere;min-width:0;\"\u003eOne instrument with folding stand.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#f9f9f9;\"\u003e\n\u003ctd style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;padding:12px;font-size:1rem;line-height:1.6;vertical-align:top;border:1px solid #e0e0e0;width:32%;font-weight:600;width:50%;overflow-wrap:anywhere;min-width:0;\"\u003eLabSen 803 pH\/temperature electrode\u003c\/td\u003e\n\u003ctd style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;padding:12px;font-size:1rem;line-height:1.6;vertical-align:top;border:1px solid #e0e0e0;width:50%;overflow-wrap:anywhere;min-width:0;\"\u003eOne electrode with storage bottle and cap; integrated temperature sensor.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#fff;\"\u003e\n\u003ctd style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;padding:12px;font-size:1rem;line-height:1.6;vertical-align:top;border:1px solid #e0e0e0;width:32%;font-weight:600;width:50%;overflow-wrap:anywhere;min-width:0;\"\u003eThree calibration buffers\u003c\/td\u003e\n\u003ctd style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;padding:12px;font-size:1rem;line-height:1.6;vertical-align:top;border:1px solid #e0e0e0;width:50%;overflow-wrap:anywhere;min-width:0;\"\u003epH 4.00, 7.00 and 10.01. Bottle volumes are not specified here.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#f9f9f9;\"\u003e\n\u003ctd style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;padding:12px;font-size:1rem;line-height:1.6;vertical-align:top;border:1px solid #e0e0e0;width:32%;font-weight:600;width:50%;overflow-wrap:anywhere;min-width:0;\"\u003eReference soaking solution\u003c\/td\u003e\n\u003ctd style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;padding:12px;font-size:1rem;line-height:1.6;vertical-align:top;border:1px solid #e0e0e0;width:50%;overflow-wrap:anywhere;min-width:0;\"\u003eSeparate bottle pictured in the PH8500-PW kit illustration; 3M KCl care chemistry. Volume not specified.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#fff;\"\u003e\n\u003ctd style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;padding:12px;font-size:1rem;line-height:1.6;vertical-align:top;border:1px solid #e0e0e0;width:32%;font-weight:600;width:50%;overflow-wrap:anywhere;min-width:0;\"\u003eUSB cable\u003c\/td\u003e\n\u003ctd style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;padding:12px;font-size:1rem;line-height:1.6;vertical-align:top;border:1px solid #e0e0e0;width:50%;overflow-wrap:anywhere;min-width:0;\"\u003eFor the meter’s wired computer connection.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#f9f9f9;\"\u003e\n\u003ctd style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;padding:12px;font-size:1rem;line-height:1.6;vertical-align:top;border:1px solid #e0e0e0;width:32%;font-weight:600;width:50%;overflow-wrap:anywhere;min-width:0;\"\u003eSoftware flash drive\u003c\/td\u003e\n\u003ctd style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;padding:12px;font-size:1rem;line-height:1.6;vertical-align:top;border:1px solid #e0e0e0;width:50%;overflow-wrap:anywhere;min-width:0;\"\u003eListed in the exact-kit illustration; current Web PC-Link is also supported.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#fff;\"\u003e\n\u003ctd style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;padding:12px;font-size:1rem;line-height:1.6;vertical-align:top;border:1px solid #e0e0e0;width:32%;font-weight:600;width:50%;overflow-wrap:anywhere;min-width:0;\"\u003eScrewdriver\u003c\/td\u003e\n\u003ctd style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;padding:12px;font-size:1rem;line-height:1.6;vertical-align:top;border:1px solid #e0e0e0;width:50%;overflow-wrap:anywhere;min-width:0;\"\u003eListed in the exact-kit illustration.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#f9f9f9;\"\u003e\n\u003ctd style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;padding:12px;font-size:1rem;line-height:1.6;vertical-align:top;border:1px solid #e0e0e0;width:32%;font-weight:600;width:50%;overflow-wrap:anywhere;min-width:0;\"\u003eUser manual\u003c\/td\u003e\n\u003ctd style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;padding:12px;font-size:1rem;line-height:1.6;vertical-align:top;border:1px solid #e0e0e0;width:50%;overflow-wrap:anywhere;min-width:0;\"\u003eMeter operating instructions; electrode instructions are linked separately.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#fff;\"\u003e\n\u003ctd style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;padding:12px;font-size:1rem;line-height:1.6;vertical-align:top;border:1px solid #e0e0e0;width:32%;font-weight:600;width:50%;overflow-wrap:anywhere;min-width:0;\"\u003eCarrying case\u003c\/td\u003e\n\u003ctd style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;padding:12px;font-size:1rem;line-height:1.6;vertical-align:top;border:1px solid #e0e0e0;width:50%;overflow-wrap:anywhere;min-width:0;\"\u003eShown in the model-specific kit illustration. Presentation and compartment layout may vary.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;flex:1 1 340px;min-width:0;\"\u003e\u003cfigure style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;margin:0;min-width:0;\"\u003e\u003cimg alt=\"Current manufacturer PH8500-PW kit illustration with LabSen 803 and separate soaking solution\" decoding=\"async\" height=\"495\" loading=\"lazy\" sizes=\"(max-width:600px) calc(100vw - 80px), 560px\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0896\/1579\/4474\/files\/apera-ph8500-pw-kit-20261015-8500.webp?v=1792098186\u0026amp;width=1000\" srcset=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0896\/1579\/4474\/files\/apera-ph8500-pw-kit-20261015-8500.webp?v=1792098186\u0026amp;width=360 360w, https:\/\/cdn.shopify.com\/s\/files\/1\/0896\/1579\/4474\/files\/apera-ph8500-pw-kit-20261015-8500.webp?v=1792098186\u0026amp;width=640 640w, https:\/\/cdn.shopify.com\/s\/files\/1\/0896\/1579\/4474\/files\/apera-ph8500-pw-kit-20261015-8500.webp?v=1792098186\u0026amp;width=1000 1000w\" style=\"display:block;width:100%;max-width:500px;height:auto;object-fit:contain;margin:0 auto;box-sizing:border-box;\" width=\"1600\"\u003e\u003cfigcaption style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;font-size:.86rem;line-height:1.65;color:#5D6C63;margin-top:12px;\"\u003eModel-specific manufacturer kit illustration. It identifies three buffers, a separate reference soaking-solution bottle, USB cable, software flash drive, screwdriver, manual and case. Volumes and an identical physical layout are not promised.\u003c\/figcaption\u003e\u003c\/figure\u003e\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/section\u003e\u003csection style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;padding:clamp(28px,5vw,56px) 0;border-bottom:1px solid #B7D0BF;\"\u003e\u003ch2 style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;font-size:clamp(24px,4vw,34px);font-weight:600;line-height:1.2;letter-spacing:-.02em;color:#245B45;margin:0 0 20px;\"\u003eWhere this configuration fits.\u003c\/h2\u003e\n\u003cdiv style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;display:flex;flex-wrap:wrap;gap:16px;\"\u003e\n\u003cdiv style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;flex:1 1 240px;min-width:0;padding:24px;background:#fff;border:1px solid #DCE6DF;border-radius:10px;\"\u003e\n\u003ch3 style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;font-size:1.07rem;font-weight:600;color:#245B45;margin:0 0 12px;\"\u003eRO and purified-water checks\u003c\/h3\u003e\n\u003cp style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;font-size:1rem;line-height:1.75;margin:0 0 16px;\"\u003eUse the pure-water electrode for appropriate reverse-osmosis and other low-ionic water samples within its operating limits. Keep the sampling point, vessel preparation and air exposure consistent when comparing results. The kit measures pH; it does not measure conductivity or establish a conductivity threshold for ultrapure-water acceptance. A satisfactory pH reading alone is not a complete water-quality qualification.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;flex:1 1 240px;min-width:0;padding:24px;background:#fff;border:1px solid #DCE6DF;border-radius:10px;\"\u003e\n\u003ch3 style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;font-size:1.07rem;font-weight:600;color:#245B45;margin:0 0 12px;\"\u003eDistilled and deionized water\u003c\/h3\u003e\n\u003cp style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;font-size:1rem;line-height:1.75;margin:0 0 16px;\"\u003eDistilled and deionized water can change during sampling as atmospheric carbon dioxide dissolves into it. Minimize air contact with a suitable sealed sample container or an appropriately selected flow cell as part of the method. A flow cell is optional and is not included or specified for compatibility here. Do not expect an open glass of pure water always to remain at neutral pH.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;flex:1 1 240px;min-width:0;padding:24px;background:#fff;border:1px solid #DCE6DF;border-radius:10px;\"\u003e\n\u003ch3 style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;font-size:1.07rem;font-weight:600;color:#245B45;margin:0 0 12px;\"\u003eDrinking, surface and storm water\u003c\/h3\u003e\n\u003cp style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;font-size:1rem;line-height:1.75;margin:0 0 16px;\"\u003eThe manufacturer also identifies drinking, surface and storm water as applications for this electrode. Use a representative water sample, suitable calibration standards and clean vessels, particularly when changing between waters with very different ionic content. Record the collection conditions with the result. This configuration is not a claim of suitability for every contaminated matrix, solid material or chemically aggressive process liquid.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/section\u003e\u003csection style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;padding:clamp(28px,5vw,56px) 0;border-bottom:1px solid #B7D0BF;\"\u003e\u003cdiv style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;display:flex;flex-wrap:wrap;align-items:center;gap:clamp(24px,4vw,48px);\"\u003e\n\u003cdiv style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;flex:1 1 340px;min-width:0;\"\u003e\u003cfigure style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;margin:0;min-width:0;\"\u003e\u003cimg alt=\"LabSen 803 manual schematic showing movable sleeve and reference outlet\" decoding=\"async\" height=\"1040\" loading=\"lazy\" sizes=\"(max-width:600px) calc(100vw - 80px), 560px\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0896\/1579\/4474\/files\/apera-ph8500-pw-sleeve-20261015-8500.webp?v=1792098186\u0026amp;width=796\" srcset=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0896\/1579\/4474\/files\/apera-ph8500-pw-sleeve-20261015-8500.webp?v=1792098186\u0026amp;width=360 360w, https:\/\/cdn.shopify.com\/s\/files\/1\/0896\/1579\/4474\/files\/apera-ph8500-pw-sleeve-20261015-8500.webp?v=1792098186\u0026amp;width=640 640w, https:\/\/cdn.shopify.com\/s\/files\/1\/0896\/1579\/4474\/files\/apera-ph8500-pw-sleeve-20261015-8500.webp?v=1792098186\u0026amp;width=796 796w\" style=\"display:block;width:100%;max-width:500px;height:auto;object-fit:contain;margin:0 auto;box-sizing:border-box;\" width=\"796\"\u003e\u003cfigcaption style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;font-size:.86rem;line-height:1.65;color:#5D6C63;margin-top:12px;\"\u003eExact 803 manual detail: the movable sleeve controls reference flow. The illustrated release tube is a method aid; inclusion in the PH8500-PW kit is not confirmed.\u003c\/figcaption\u003e\u003c\/figure\u003e\u003c\/div\u003e\n\u003cdiv style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;flex:1 1 340px;min-width:0;\"\u003e\n\u003ch2 style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;font-size:clamp(24px,4vw,34px);font-weight:600;line-height:1.2;letter-spacing:-.02em;color:#245B45;margin:0 0 20px;\"\u003eControl the sample.\u003cbr\u003eThen trust the stable reading.\u003c\/h2\u003e\n\u003cp style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;font-size:1rem;line-height:1.75;margin:0 0 16px;\"\u003eConnect the blue BNC pH lead and black RCA temperature lead to the PH8500. Remove the probe from its storage bottle, rinse it with distilled or deionized water, and open the blue refill plug to allow reference flow. Perform at least a two-point calibration before using a new electrode, choosing standards appropriate to the expected sample range. Use fresh portions and rinse between solutions to limit carryover into low-ion samples.\u003c\/p\u003e\n\u003cp style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;font-size:1rem;line-height:1.75;margin:0 0 16px;\"\u003ePrepare enough sample to immerse the sensing membrane and sleeve junction without striking the vessel. No exact minimum sample volume is specified for the LabSen 803 here. Limit unnecessary transfer and air exposure, and use a consistent sampling arrangement. If sleeve adjustment is needed, follow the electrode manual and recalibrate afterwards. A sealed container or separately selected flow cell can help manage carbon dioxide exposure; neither changes the electrode’s rated operating limits.\u003c\/p\u003e\n\u003cp style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;font-size:1rem;line-height:1.75;margin:0 0 16px;\"\u003eAllow the reading to stabilize before recording, rather than imposing one fixed waiting time on all water samples. Check the temperature as well as pH and keep the measurement procedure consistent between tests. For interval work, verify the meter settings and available memory first. When using PC-Link, manage the computer session as the recording destination and export the data before closing it; connected logging is not a second automatic copy in the meter.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/section\u003e\u003csection style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;padding:clamp(28px,5vw,56px) 0;border-bottom:1px solid #B7D0BF;\"\u003e\u003ch2 style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;font-size:clamp(24px,4vw,34px);font-weight:600;line-height:1.2;letter-spacing:-.02em;color:#245B45;margin:0 0 20px;\"\u003eA closer look at the supplied sensor.\u003c\/h2\u003e\n\u003cdiv style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;display:flex;flex-wrap:wrap;align-items:center;gap:26px;\"\u003e\n\u003cdiv style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;flex:1 1 300px;min-width:0;\"\u003e\u003cfigure style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;margin:0;min-width:0;\"\u003e\u003cimg alt=\"LabSen 803 with blue refill plug, storage bottle and BNC\/RCA connectors\" decoding=\"async\" height=\"1600\" loading=\"lazy\" sizes=\"(max-width:600px) calc(100vw - 80px), 560px\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0896\/1579\/4474\/files\/apera-ph8500-pw-probe-20261015-8500.webp?v=1792098186\u0026amp;width=1000\" srcset=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0896\/1579\/4474\/files\/apera-ph8500-pw-probe-20261015-8500.webp?v=1792098186\u0026amp;width=360 360w, https:\/\/cdn.shopify.com\/s\/files\/1\/0896\/1579\/4474\/files\/apera-ph8500-pw-probe-20261015-8500.webp?v=1792098186\u0026amp;width=640 640w, https:\/\/cdn.shopify.com\/s\/files\/1\/0896\/1579\/4474\/files\/apera-ph8500-pw-probe-20261015-8500.webp?v=1792098186\u0026amp;width=1000 1000w\" style=\"display:block;width:100%;max-width:480px;height:auto;object-fit:contain;margin:0 auto;box-sizing:border-box;\" width=\"1600\"\u003e\u003cfigcaption style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;font-size:.86rem;line-height:1.65;color:#5D6C63;margin-top:12px;\"\u003eThe supplied LabSen 803 has separate BNC pH and RCA temperature leads. Its blue refill plug and external storage bottle serve different care functions.\u003c\/figcaption\u003e\u003c\/figure\u003e\u003c\/div\u003e\n\u003cdiv style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;flex:1 1 300px;min-width:0;\"\u003e\u003cfigure style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;margin:0;min-width:0;\"\u003e\u003cimg alt=\"LabSen 803 cylindrical glass sensing tip and movable sleeve close-up\" decoding=\"async\" height=\"1600\" loading=\"lazy\" sizes=\"(max-width:600px) calc(100vw - 80px), 560px\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0896\/1579\/4474\/files\/apera-ph8500-pw-probe-detail-20261015-8500.webp?v=1792098186\u0026amp;width=1000\" srcset=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0896\/1579\/4474\/files\/apera-ph8500-pw-probe-detail-20261015-8500.webp?v=1792098186\u0026amp;width=360 360w, https:\/\/cdn.shopify.com\/s\/files\/1\/0896\/1579\/4474\/files\/apera-ph8500-pw-probe-detail-20261015-8500.webp?v=1792098186\u0026amp;width=640 640w, https:\/\/cdn.shopify.com\/s\/files\/1\/0896\/1579\/4474\/files\/apera-ph8500-pw-probe-detail-20261015-8500.webp?v=1792098186\u0026amp;width=1000 1000w\" style=\"display:block;width:100%;max-width:480px;height:auto;object-fit:contain;margin:0 auto;box-sizing:border-box;\" width=\"1600\"\u003e\u003cfigcaption style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;font-size:.86rem;line-height:1.65;color:#5D6C63;margin-top:12px;\"\u003eActual LabSen 803 tip and movable sleeve. Protect the glass, maintain 3M KCl reference fill and recalibrate after changing sleeve tightness.\u003c\/figcaption\u003e\u003c\/figure\u003e\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/section\u003e\u003csection style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;padding:clamp(28px,5vw,56px) 0;border-bottom:1px solid #B7D0BF;\"\u003e\u003cdiv style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;display:flex;flex-wrap:wrap;align-items:center;gap:clamp(24px,4vw,48px);\"\u003e\n\u003cdiv style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;flex:1 1 340px;min-width:0;\"\u003e\n\u003ch2 style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;font-size:clamp(24px,4vw,34px);font-weight:600;line-height:1.2;letter-spacing:-.02em;color:#245B45;margin:0 0 20px;\"\u003eRefill the reference.\u003cbr\u003eStore the glass wet.\u003c\/h2\u003e\n\u003cp style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;font-size:1rem;line-height:1.75;margin:0 0 16px;\"\u003eUse 3M KCl for the LabSen 803 reference refill and for its external storage solution. These are separate tasks using the same specified chemistry. When reference solution falls to about half the electrode height, replenish through the refill opening as directed, using an appropriate syringe or pipette. The exact-kit illustration shows a separate reference soaking-solution bottle, but no volume or refill-tool inclusion is promised. Do not substitute another LabSen model’s electrolyte.\u003c\/p\u003e\n\u003cp style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;font-size:1rem;line-height:1.75;margin:0 0 16px;\"\u003eAfter use, rinse away sample residue, return the probe to its 3M KCl storage bottle, tighten the cap and close the refill plug. Replace soaking solution when contaminated or insufficient. Distilled and deionized water are rinse liquids, not storage liquids. Keep the BNC and RCA connectors clean and dry, and protect the glass body and movable sleeve when packing the electrode back into the carrying case.\u003c\/p\u003e\n\u003cp style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;font-size:1rem;line-height:1.75;margin:0 0 16px;\"\u003eFor tough contamination, the electrode manual specifies Apera AI1166 cleaning solution for 30 minutes, gentle removal with a soft brush, then at least one hour in 3M KCl before rinsing and recalibration. Cleaning solution and additional care supplies are separate purchases unless expressly listed. Avoid strong acid, strong alkali and dehydrating media. Manufacturer limited coverage is three years for the meter and six months for the probe from delivery, with exclusions for misuse, wear and other specified causes.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;flex:1 1 340px;min-width:0;\"\u003e\u003cfigure style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;margin:0;min-width:0;\"\u003e\u003cimg alt=\"LabSen 803 storage-bottle screw cap diagram\" decoding=\"async\" height=\"1067\" loading=\"lazy\" sizes=\"(max-width:600px) calc(100vw - 80px), 560px\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0896\/1579\/4474\/files\/apera-ph8500-pw-care-20261015-8500.webp?v=1792098186\u0026amp;width=750\" srcset=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0896\/1579\/4474\/files\/apera-ph8500-pw-care-20261015-8500.webp?v=1792098186\u0026amp;width=360 360w, https:\/\/cdn.shopify.com\/s\/files\/1\/0896\/1579\/4474\/files\/apera-ph8500-pw-care-20261015-8500.webp?v=1792098186\u0026amp;width=640 640w, https:\/\/cdn.shopify.com\/s\/files\/1\/0896\/1579\/4474\/files\/apera-ph8500-pw-care-20261015-8500.webp?v=1792098186\u0026amp;width=750 750w\" style=\"display:block;width:100%;max-width:500px;height:auto;object-fit:contain;margin:0 auto;box-sizing:border-box;\" width=\"750\"\u003e\u003cfigcaption style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;font-size:.86rem;line-height:1.65;color:#5D6C63;margin-top:12px;\"\u003eExact 803 storage diagram. Keep the probe in 3M KCl externally, and refill the internal reference with 3M KCl separately. Close the refill plug after use.\u003c\/figcaption\u003e\u003c\/figure\u003e\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/section\u003e\u003csection style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;padding:clamp(28px,5vw,56px) 0;border-bottom:1px solid #B7D0BF;\"\u003e\u003cfigure style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;margin:0;min-width:0;\"\u003e\u003cimg alt=\"Manufacturer handbook excerpt recommending a sealed sample container or flow cell to limit air contact\" decoding=\"async\" height=\"650\" loading=\"lazy\" sizes=\"(max-width:600px) calc(100vw - 80px), 560px\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0896\/1579\/4474\/files\/apera-ph8500-pw-co2-20261015-8500.webp?v=1792098186\u0026amp;width=1000\" srcset=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0896\/1579\/4474\/files\/apera-ph8500-pw-co2-20261015-8500.webp?v=1792098186\u0026amp;width=360 360w, https:\/\/cdn.shopify.com\/s\/files\/1\/0896\/1579\/4474\/files\/apera-ph8500-pw-co2-20261015-8500.webp?v=1792098186\u0026amp;width=640 640w, https:\/\/cdn.shopify.com\/s\/files\/1\/0896\/1579\/4474\/files\/apera-ph8500-pw-co2-20261015-8500.webp?v=1792098186\u0026amp;width=1000 1000w\" style=\"display:block;width:100%;max-width:620px;height:auto;object-fit:contain;margin:0 auto;box-sizing:border-box;\" width=\"1440\"\u003e\u003cfigcaption style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;font-size:.86rem;line-height:1.65;color:#5D6C63;margin-top:12px;\"\u003ePure-water handling guidance from the manufacturer handbook, not a required sample pH. A suitable sealed container or optional flow cell can limit air contact; no flow cell is included or specified here.\u003c\/figcaption\u003e\u003c\/figure\u003e\u003c\/section\u003e\u003csection style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;padding:clamp(28px,5vw,56px) 0;border-bottom:1px solid #B7D0BF;\"\u003e\u003cfigure style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;margin:0;min-width:0;\"\u003e\u003cimg alt=\"PH8500 connected to a computer through its USB cable\" decoding=\"async\" height=\"1195\" loading=\"lazy\" sizes=\"(max-width:600px) calc(100vw - 80px), 560px\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0896\/1579\/4474\/files\/apera-ph8500-pw-usb-20261015-8500.webp?v=1792098186\u0026amp;width=1000\" srcset=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0896\/1579\/4474\/files\/apera-ph8500-pw-usb-20261015-8500.webp?v=1792098186\u0026amp;width=360 360w, https:\/\/cdn.shopify.com\/s\/files\/1\/0896\/1579\/4474\/files\/apera-ph8500-pw-usb-20261015-8500.webp?v=1792098186\u0026amp;width=640 640w, https:\/\/cdn.shopify.com\/s\/files\/1\/0896\/1579\/4474\/files\/apera-ph8500-pw-usb-20261015-8500.webp?v=1792098186\u0026amp;width=1000 1000w\" style=\"display:block;width:100%;max-width:620px;height:auto;object-fit:contain;margin:0 auto;box-sizing:border-box;\" width=\"1568\"\u003e\u003cfigcaption style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;font-size:.86rem;line-height:1.65;color:#5D6C63;margin-top:12px;\"\u003eShared PH8500 USB workflow in a manufacturer photograph. The computer is a prop, not included; the pictured legacy software is not the current Web PC-Link interface.\u003c\/figcaption\u003e\u003c\/figure\u003e\u003c\/section\u003e\u003csection style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;padding:clamp(28px,5vw,56px) 0;border-bottom:1px solid #B7D0BF;\"\u003e\u003cfigure style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;margin:0;min-width:0;\"\u003e\u003cimg alt=\"Actual Web PC-Link connection and data view with no meter connected\" decoding=\"async\" height=\"725\" loading=\"lazy\" sizes=\"(max-width:600px) calc(100vw - 80px), 560px\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0896\/1579\/4474\/files\/apera-ph8500-pw-software-20261015-8500.webp?v=1792098186\u0026amp;width=1000\" srcset=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0896\/1579\/4474\/files\/apera-ph8500-pw-software-20261015-8500.webp?v=1792098186\u0026amp;width=360 360w, https:\/\/cdn.shopify.com\/s\/files\/1\/0896\/1579\/4474\/files\/apera-ph8500-pw-software-20261015-8500.webp?v=1792098186\u0026amp;width=640 640w, https:\/\/cdn.shopify.com\/s\/files\/1\/0896\/1579\/4474\/files\/apera-ph8500-pw-software-20261015-8500.webp?v=1792098186\u0026amp;width=1000 1000w\" style=\"display:block;width:100%;max-width:620px;height:auto;object-fit:contain;margin:0 auto;box-sizing:border-box;\" width=\"1280\"\u003e\u003cfigcaption style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;font-size:.86rem;line-height:1.65;color:#5D6C63;margin-top:12px;\"\u003eActual Web PC-Link screen in a disconnected state, not a hardware validation. New connected readings go to software instead of meter memory; export before closing.\u003c\/figcaption\u003e\u003c\/figure\u003e\u003c\/section\u003e\u003csection style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;padding:clamp(28px,5vw,56px) 0;border-bottom:1px solid #B7D0BF;\"\u003e\u003cdiv style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;display:flex;flex-wrap:wrap;align-items:center;gap:clamp(24px,4vw,48px);\"\u003e\n\u003cdiv style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;flex:1 1 340px;min-width:0;\"\u003e\u003cfigure style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;margin:0;min-width:0;\"\u003e\u003cimg alt=\"PH8500 keypad, display and folding stand\" decoding=\"async\" height=\"509\" loading=\"lazy\" sizes=\"(max-width:600px) calc(100vw - 80px), 560px\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0896\/1579\/4474\/files\/apera-ph8500-pw-controls-20261015-8500.webp?v=1792098186\u0026amp;width=590\" srcset=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0896\/1579\/4474\/files\/apera-ph8500-pw-controls-20261015-8500.webp?v=1792098186\u0026amp;width=360 360w, https:\/\/cdn.shopify.com\/s\/files\/1\/0896\/1579\/4474\/files\/apera-ph8500-pw-controls-20261015-8500.webp?v=1792098186\u0026amp;width=590 590w\" style=\"display:block;width:100%;max-width:420px;height:auto;object-fit:contain;margin:0 auto;box-sizing:border-box;\" width=\"590\"\u003e\u003cfigcaption style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;font-size:.86rem;line-height:1.65;color:#5D6C63;margin-top:12px;\"\u003eShared PH8500 controls and folding stand, photographed on the current WW page. Display values illustrate the hardware, not a sample result.\u003c\/figcaption\u003e\u003c\/figure\u003e\u003c\/div\u003e\n\u003cdiv style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;flex:1 1 340px;min-width:0;\"\u003e\n\u003ch2 style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;font-size:clamp(24px,4vw,34px);font-weight:600;line-height:1.2;letter-spacing:-.02em;color:#245B45;margin:0 0 20px;\"\u003eRead the meter.\u003cbr\u003eKnow what is held.\u003c\/h2\u003e\n\u003cp style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;font-size:1rem;line-height:1.75;margin:0 0 16px;\"\u003eUse the physical controls for standalone measurement and calibration. The stable-reading indicator and HOLD help you read a result; a held display is not an onboard measurement-history logger for later upload.\u003c\/p\u003e\n\u003cp style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;font-size:1rem;line-height:1.75;margin:0 0 16px;\"\u003eKeep the connectors and battery compartment dry when changing parts. Follow the exact manual for key sequences, battery orientation and cap sealing. Screen values in photographs are illustrative, not test results or a promise of compatibility with another sensing head.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/section\u003e\u003csection style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;padding:clamp(28px,5vw,56px) 0;border-bottom:1px solid #B7D0BF;\"\u003e\u003cdiv style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;display:flex;flex-wrap:wrap;align-items:center;gap:clamp(24px,4vw,48px);\"\u003e\n\u003cdiv style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;flex:1 1 340px;min-width:0;\"\u003e\n\u003ch2 style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;font-size:clamp(24px,4vw,34px);font-weight:600;line-height:1.2;letter-spacing:-.02em;color:#245B45;margin:0 0 20px;\"\u003eBuild a local record.\u003cbr\u003eKeep the transfer workflow clear.\u003c\/h2\u003e\n\u003cp style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;font-size:1rem;line-height:1.75;margin:0 0 16px;\"\u003eEach 8500 meter can measure and calibrate without a computer. It can retain up to 500 data sets, including date, time, measured value, unit, temperature and the last calibration record. M+ supports manual saving after stability; timed logging can be set from one minute through 99 hours 59 minutes. Deleting stored values cannot be undone.\u003c\/p\u003e\n\u003cp style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;font-size:1rem;line-height:1.75;margin:0 0 16px;\"\u003eFor computer work, use the meter USB connection with the current Web PC-Link workflow on a desktop Chrome or Edge browser under Windows or Mac. The tool supports CSV output and browser-print reporting. Do not assume Firefox compatibility, a native Excel\/PDF export format, an immutable audit trail, electronic signatures or regulatory validation.\u003c\/p\u003e\n\u003cp style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;font-size:1rem;line-height:1.75;margin:0 0 16px;\"\u003eWhen connected to PC-Link, new records go to the software rather than to the meter memory. Save and export important records before closing the browser. USB logging does not guarantee automatic backup, permanent retention or protection from user deletion. Keep the exact meter, configured probe and sample method with any record.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;flex:1 1 340px;min-width:0;\"\u003e\u003cfigure style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;margin:0;min-width:0;\"\u003e\u003cimg alt=\"PH8500 connected to a computer through its USB cable\" decoding=\"async\" height=\"1195\" loading=\"lazy\" sizes=\"(max-width:600px) calc(100vw - 80px), 560px\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0896\/1579\/4474\/files\/apera-ph8500-pw-usb-20261015-8500.webp?v=1792098186\u0026amp;width=1000\" srcset=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0896\/1579\/4474\/files\/apera-ph8500-pw-usb-20261015-8500.webp?v=1792098186\u0026amp;width=360 360w, https:\/\/cdn.shopify.com\/s\/files\/1\/0896\/1579\/4474\/files\/apera-ph8500-pw-usb-20261015-8500.webp?v=1792098186\u0026amp;width=640 640w, https:\/\/cdn.shopify.com\/s\/files\/1\/0896\/1579\/4474\/files\/apera-ph8500-pw-usb-20261015-8500.webp?v=1792098186\u0026amp;width=1000 1000w\" style=\"display:block;width:100%;max-width:450px;height:auto;object-fit:contain;margin:0 auto;box-sizing:border-box;\" width=\"1568\"\u003e\u003cfigcaption style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;font-size:.86rem;line-height:1.65;color:#5D6C63;margin-top:12px;\"\u003eShared PH8500 USB workflow in a manufacturer photograph. The computer is a prop, not included; the pictured legacy software is not the current Web PC-Link interface.\u003c\/figcaption\u003e\u003c\/figure\u003e\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/section\u003e\u003csection style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;padding:clamp(28px,5vw,56px) 0;border-bottom:1px solid #B7D0BF;\"\u003e\u003cfigure style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;margin:0;min-width:0;\"\u003e\u003cimg alt=\"Actual Web PC-Link connection and data view with no meter connected\" decoding=\"async\" height=\"725\" loading=\"lazy\" sizes=\"(max-width:600px) calc(100vw - 80px), 560px\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0896\/1579\/4474\/files\/apera-ph8500-pw-software-20261015-8500.webp?v=1792098186\u0026amp;width=1000\" srcset=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0896\/1579\/4474\/files\/apera-ph8500-pw-software-20261015-8500.webp?v=1792098186\u0026amp;width=360 360w, https:\/\/cdn.shopify.com\/s\/files\/1\/0896\/1579\/4474\/files\/apera-ph8500-pw-software-20261015-8500.webp?v=1792098186\u0026amp;width=640 640w, https:\/\/cdn.shopify.com\/s\/files\/1\/0896\/1579\/4474\/files\/apera-ph8500-pw-software-20261015-8500.webp?v=1792098186\u0026amp;width=1000 1000w\" style=\"display:block;width:100%;max-width:300px;height:auto;object-fit:contain;margin:0 auto;box-sizing:border-box;\" width=\"1280\"\u003e\u003cfigcaption style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;font-size:.86rem;line-height:1.65;color:#5D6C63;margin-top:12px;\"\u003eActual Web PC-Link screen in a disconnected state, not a hardware validation. New connected readings go to software instead of meter memory; export before closing.\u003c\/figcaption\u003e\u003c\/figure\u003e\u003c\/section\u003e\u003csection style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;padding:clamp(28px,5vw,56px) 0;border-bottom:1px solid #B7D0BF;\"\u003e\u003ch2 style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;font-size:clamp(24px,4vw,34px);font-weight:600;line-height:1.2;letter-spacing:-.02em;color:#245B45;margin:0 0 20px;\"\u003eCompare a standalone alternative.\u003c\/h2\u003e\n\u003cp style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;font-size:1rem;line-height:1.75;margin:0 0 16px;\"\u003eAlternative format: \u003ca href=\"https:\/\/bluetigerscientific.com\/products\/apera-instruments-ph60-pw-ph-tester-kit-for-pure-water-with-labsen-805-atc-ph-electrode\" style=\"color:#245B45;text-decoration:underline;font-weight:600;\"\u003eApera PH60-PW Pure Water pH Kit with LabSen 805\u003c\/a\u003e. Compare the exact standalone kit when Bluetooth-connected recordkeeping is not needed. A related family name does not establish the same probe upgrades or app support.\u003c\/p\u003e\u003c\/section\u003e\u003csection id=\"bts-ph8500-pw-faq\" style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;padding:28px 0;line-height:1.15;\"\u003e\u003ch2 style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;font-size:1.1rem;font-weight:600;margin:0 0 16px;\"\u003ePH8500-PW buyer questions\u003c\/h2\u003e\n\u003cdetails style=\"border:1px solid #e0e0e0;border-radius:8px;margin-bottom:10px;background:white;\"\u003e\u003csummary style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;padding:14px 16px;cursor:pointer;font-weight:600;font-size:1rem;line-height:1.15;\"\u003eWhich electrode comes with PH8500-PW?\u003c\/summary\u003e\u003cdiv style=\"padding:0 16px 14px;\"\u003e\u003cp style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;font-size:.97rem;line-height:1.6;margin:0;\"\u003eLabSen 803, current replacement SKU AI3137. It has a glass body, movable sleeve, refillable 3M KCl reference and integrated temperature sensor. It is not LabSen 805 or 813.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails style=\"border:1px solid #e0e0e0;border-radius:8px;margin-bottom:10px;background:white;\"\u003e\u003csummary style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;padding:14px 16px;cursor:pointer;font-weight:600;font-size:1rem;line-height:1.15;\"\u003eWhat are the supplied electrode’s working limits?\u003c\/summary\u003e\u003cdiv style=\"padding:0 16px 14px;\"\u003e\u003cp style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;font-size:.97rem;line-height:1.6;margin:0;\"\u003e1–11 pH and 0–80°C. A wider meter display interval is not permission to exceed the supplied probe’s limits or its chemical suitability.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails style=\"border:1px solid #e0e0e0;border-radius:8px;margin-bottom:10px;background:white;\"\u003e\u003csummary style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;padding:14px 16px;cursor:pointer;font-weight:600;font-size:1rem;line-height:1.15;\"\u003eDo I refill it, and what do I use for storage?\u003c\/summary\u003e\u003cdiv style=\"padding:0 16px 14px;\"\u003e\u003cp style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;font-size:.97rem;line-height:1.6;margin:0;\"\u003eYes. Refill the reference with 3M KCl as instructed. Use 3M KCl externally in the storage bottle too. Do not use pure water for long-term storage.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails style=\"border:1px solid #e0e0e0;border-radius:8px;margin-bottom:10px;background:white;\"\u003e\u003csummary style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;padding:14px 16px;cursor:pointer;font-weight:600;font-size:1rem;line-height:1.15;\"\u003eHow much sample is required?\u003c\/summary\u003e\u003cdiv style=\"padding:0 16px 14px;\"\u003e\u003cp style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;font-size:.97rem;line-height:1.6;margin:0;\"\u003eNo verified exact minimum volume is stated here. The vessel must allow immersion of the membrane and sleeve junction without contact damage. Do not borrow a micro-electrode volume specification.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails style=\"border:1px solid #e0e0e0;border-radius:8px;margin-bottom:10px;background:white;\"\u003e\u003csummary style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;padding:14px 16px;cursor:pointer;font-weight:600;font-size:1rem;line-height:1.15;\"\u003eDoes the kit include a flow cell?\u003c\/summary\u003e\u003cdiv style=\"padding:0 16px 14px;\"\u003e\u003cp style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;font-size:.97rem;line-height:1.6;margin:0;\"\u003eNo. A sealed sample container or optional, separately selected flow cell is method guidance for limiting atmospheric carbon dioxide exposure, not a supplied accessory or a verified compatible flow-cell model.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails style=\"border:1px solid #e0e0e0;border-radius:8px;margin-bottom:10px;background:white;\"\u003e\u003csummary style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;padding:14px 16px;cursor:pointer;font-weight:600;font-size:1rem;line-height:1.15;\"\u003eCan I export data wirelessly or use Firefox?\u003c\/summary\u003e\u003cdiv style=\"padding:0 16px 14px;\"\u003e\u003cp style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;font-size:.97rem;line-height:1.6;margin:0;\"\u003eThis is a wired USB system, not Bluetooth or ZenTest. Use compatible desktop Chrome or Edge for Web PC-Link on Windows\/Mac; Firefox USB compatibility is not promised. Export CSV or use browser printing.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails style=\"border:1px solid #e0e0e0;border-radius:8px;margin-bottom:10px;background:white;\"\u003e\u003csummary style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;padding:14px 16px;cursor:pointer;font-weight:600;font-size:1rem;line-height:1.15;\"\u003eAre PC-Link readings also saved in the meter?\u003c\/summary\u003e\u003cdiv style=\"padding:0 16px 14px;\"\u003e\u003cp style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;font-size:.97rem;line-height:1.6;margin:0;\"\u003eNew readings logged while connected to PC-Link go to software instead of meter memory. Export before closing. The 500-set meter capacity does not establish automatic computer backup or loss-proof retention.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails style=\"border:1px solid #e0e0e0;border-radius:8px;margin-bottom:10px;background:white;\"\u003e\u003csummary style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;padding:14px 16px;cursor:pointer;font-weight:600;font-size:1rem;line-height:1.15;\"\u003eWhat should I confirm before ordering consumables?\u003c\/summary\u003e\u003cdiv style=\"padding:0 16px 14px;\"\u003e\u003cp style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;font-size:.97rem;line-height:1.6;margin:0;\"\u003eThe exact kit lists pH 4.00, 7.00 and 10.01 buffers plus a separate reference soaking-solution bottle, but volumes are unverified. Battery, adapter, calibration-vial and sleeve-release-tool inclusion are not promised.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003c\/section\u003e\u003csection style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;padding:28px;background:#F1F7F3;border:1px solid #B7D0BF;border-radius:12px;\"\u003e\u003ch2 style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;font-size:clamp(24px,4vw,34px);font-weight:600;line-height:1.2;letter-spacing:-.02em;color:#245B45;margin:0 0 20px;\"\u003eConfirm the exact item before ordering.\u003c\/h2\u003e\n\u003cp style=\"font-family:'Open Sans',sans-serif;font-weight:300;box-sizing:border-box;font-size:1rem;line-height:1.75;margin:0 0 16px;\"\u003eReview PH8500-PW AI5556 and return to the price and ordering controls. Blue Tiger Scientific can help clarify the sample, electrode and documentation requirements.\u003c\/p\u003e\n\u003ca href=\"#\" style=\"color:#245B45;text-decoration:underline;font-weight:600;\"\u003eBack to price and ordering ↑\u003c\/a\u003e\u003c\/section\u003e\n\u003c\/div\u003e","brand":"Apera Instruments","offers":[{"title":"Default Title","offer_id":52957413212458,"sku":"BTS-AI5556","price":545.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0896\/1579\/4474\/files\/apera-ph8500-pw-hero-20261015-8500.webp?v=1792098186","url":"https:\/\/bluetigerscientific.com\/products\/apera-ph8500-pw-portable-pure-water-ph-meter-kit","provider":"Blue Tiger Scientific","version":"1.0","type":"link"}