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K=0.1 and a flow cell for pure water.
APERA INSTRUMENTS / DJS-0.1-C · DJS-0.1-F / AI1310 / AI1311
Apera’s DJS-0.1 conductivity electrodes measure purified and ultrapure water from 0 to 200 µS/cm. A high-sensitivity platinum chip (K=0.1) gives accuracy in this low range, and the included glass flow cell keeps airborne CO₂ from changing the sample. The DJS-0.1-C has a BNC connector; the DJS-0.1-F adds a built-in temperature sensor with BNC/RCA plugs.
Choose the version from the menu above. Apera’s warranty: six months from delivery.
Only published products are linked. Other cards provide model-comparison information and do not indicate current storefront availability.
Pick the measurement, then the connector your meter uses (BNC, BNC/RCA with temperature, or 8-pin) on that page. For application-specific pH electrodes, see the LabSen range.
201-C · 201DJ-C · 201T-S
General water pH
Economical PC-body pH electrode; BNC, double-junction or 8-pin.
301Pt-C · 301Pt-S · 301DJ-C
ORP / redox
Platinum ORP sensor; BNC, 8-pin or double-junction BNC.
2301-C · 2301T-F · 2301T-S
Conductivity, K=1
POM body, platinum black sensor; BNC, BNC/RCA or 8-pin.
2401-C · 2401T-F
High-accuracy lab conductivity
Glass body, platinum chip in a cavity; BNC or BNC/RCA.
2310-C · 2310T-F
High range to 2,000 mS/cm
K=10 platinum black ring for brines and concentrates.
DJS-0.1-C · DJS-0.1-F
Pure and ultrapure water
K=0.1 with glass flow cell against airborne CO₂.
DJS-0.1-C requires a compatible conductivity BNC input with K=0.1 and low-range support. DJS-0.1-F uses BNC/RCA and a 30 kΩ temperature sensor. Confirm the exact host accepts this electrode and temperature sensor; connector matching alone is insufficient.
A high-sensitivity platinum chip for accuracy from 0 to 200 µS/cm.
Keeps airborne CO₂ out of the sample, which would otherwise raise a pure-water reading.
For automatic temperature compensation, which matters most at low conductivity.
Both versions: range 0–200 µS/cm, K=0.1, a 7 × 18 mm platinum sensing element, glass body Ø12 × 155 mm and 1 m cable. The glass flow cell is included; the manuals call for a 7 mm rubber tube, supplied separately.
The full specification table, version by version, is in the Product Specifications tab.
Rinse with deionized or distilled water before and after measuring; rinse several times with the sample when practical. Both DJS-0.1 manuals explicitly say to store dry when not in use. Do not apply wet-storage instructions from other conductivity electrodes. Use warm detergent water or alcohol for organic residues, then rinse thoroughly.
Calibrate with 84 µS/cm, the low-range standard.
DJS-0.1-C and DJS-0.1-F are K=0.1 probes for purified and ultrapure water, with a specified conductivity range of 0–200 µS/cm. They are not the K=10 option for concentrated brines.
DJS-0.1-C has a BNC connector and no integrated temperature sensor. DJS-0.1-F has BNC/RCA connectors and a 30 kΩ temperature sensor for a compatible meter.
Contact with air can change the conductivity of very pure water. The glass flow cell lets water pass the sensing element with reduced air exposure, helping limit that source of measurement error.
No. The DJS-0.1 manuals specify a 7 mm rubber tube, not included, connected to the lower end of the flow cell. The glass flow cell itself is included.
The DJS-0.1-C and DJS-0.1-F manuals specify a 12 × 155 mm glass electrode body, a 7 × 18 mm platinum sensing element and a 1 m cable.
Set the host meter's cell constant to K=0.1 and use its low calibration point. The electrode manuals give 84 µS/cm as an example. Rinse several times with the sample when practical before measuring low-conductivity water.
No. The meter must support this conductivity electrode, K=0.1 and the required low range. DJS-0.1-F also needs a compatible RCA temperature input for its 30 kΩ sensor.
Dry. Both DJS-0.1 manuals explicitly say to store dry when not in use. Rinse with deionized or distilled water after testing; do not carry over wet-storage instructions from a different conductivity or pH electrode.
Check the version and catalog number (AI1310 / AI1311) against your meter, then return to the live price and ordering controls.
APERA INSTRUMENTS, LLC warrants this product to be free from defects in material and workmanship for SIX MONTHS from the delivery.
This limited warranty does NOT cover accidental damage, improper use, normal wear and tear, transportation, storage, failure to follow the product instructions, unauthorized maintenance, modification or repair, or external causes beyond Apera's reasonable control.
Exact-model documents are identified below. Regional instruction sheets and host-tester manuals are labelled by scope; use the host manual for meter operation and calibration. Each whole card opens a PDF in a new tab.
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