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Measure practical salinity in saltwater with the Apera 5052. Its compact pen format combines a platinum-coated conductivity sensor, automatic temperature compensation and a direct ppt display for aquarium, aquaculture and environmental checks.
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APERA INSTRUMENTS / 5052 / AI235
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5052 converts conductivity to practical salinity using the PSS-78 relationship. It is designed for seawater-type samples, with a 0–100.0 ppt specified range.
Practical salinity is not a direct chemical assay of total dissolved salts. For a sodium-chloride-specific method or another sample matrix, choose the matching instrument and calibration method.
The pen provides automatic one-point calibration using 50.0 mS/cm conductivity standard. Automatic temperature compensation covers 0–60°C; the model does not display temperature.
Rinse the sensor when moving between different solutions, remove excess water and wait for a stable reading. Clean gently according to the manual to protect the platinum-black coating.
The manufacturer lists the 5052 tester, two AAA batteries, calibration solution and a case. IP57 protection supports field use while the small pen body is easy to carry.
Do not infer an immersion depth or continuous underwater operating rating from the protection class. Keep battery contacts dry and follow the manual when cleaning and replacing batteries.
Match the stated limits and configuration to your procedure. The Product Specifications tab repeats the order details for quick reference.
Apera Salt20 Pocket Salinity Tester Kit (AI214)
Practical salinity in seawater-type samples, calculated from conductivity using PSS-78 and displayed as ppt.
The manufacturer specifies 0–100.0 ppt with ±1.5% full-scale accuracy.
No. It applies automatic temperature compensation over 0–60°C without showing a temperature reading.
Use the specified 50.0 mS/cm conductivity standard for the automatic one-point calibration.
No. The 5052 measures salinity. A separate pH tester is required for pH measurements.
Two AAA batteries. The manual also describes automatic power-off and low-battery indication.
Do not rub or abrade the platinum-black sensing surface. Use the cleaning method in the 5052 manual.
No. Its seawater practical-salinity conversion does not identify individual salts or replace a sample-specific chemical method.
Review the order contents and the required electrode and calibration setup before ordering. Contact Blue Tiger Scientific if you need help matching the part.
Manufacturer warranty support is subject to Apera’s terms for the specific product and the cause of the issue. Keep your purchase record and product identification for a support request.
For setup, compatibility or troubleshooting support, contact Blue Tiger Scientific with the model, order number and a description of the issue.
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Document scope is shown on each card. A parent-meter manual or family handbook may describe other configurations and does not change the order contents on this page.
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