$50 - $75, Apera Instruments

201T-F Plastic 3-in-1 Combination pH Electrode by Apera

The 201T-F Plastic 3-in-1 Combination pH Electrode tests pH and temperature simultaneously and supports auto temperature compensation. It is an economic choice for a reliable pH electrode.

Not suitable for testing in strong base solution (pH>12), highly corrosive liquid, or for constant testing in high temperature (>60°C).

Compatible Models: PH700, SX823-B, MP511, PH800, PC800

• Adopts gel KCL electrolyte, no need to refill.
• Detachable probe cap, easy to clean.
• The electrode's body adopts polycarbonate housing, which is shock-resistant and corrosion-resistant, ideal for both lab and in-field use.

ORP60-DA Spare ORP Electrode for PC60-Z, PH60-Z, PH60S-Z, PH60F-Z (double-junction) by Apera

The Apera Instruments ORP60-DA is the replacement ORP probe for PH60-Z, PH60S-Z, PH60F-Z, and PC60-Z. This probe features a Platinum ORP sensor with a double-junction structure. Designed for general water solution testing's ORP measurement.

• Replacement ORP probe for PH60-Z, PC60-Z, PH60S-Z, PH60F-Z
• Platinum ORP sensor
• Double-junction structure
• Made for general water solution's ORP testing

201T-S Plastic 3-in-1 Combination pH Electrode by Apera

The 201T-S Plastic 3-in-1 Combination pH Electrode tests pH and temperature simultaneously and supports auto temperature compensation. It is an economic choice for a reliable pH electrode.

Not suitable for testing in strong base solution (pH>12), highly corrosive liquid, or for constant testing in high temperature (>60°C).

Compatible Models: PH400, PC400, PH400S, PC400S

• Adopts gel KCL electrolyte, no need to refill.
• Detachable probe cap, easy to clean.
• The electrode's body adopts polycarbonate housing, which is shock-resistant and corrosion-resistant, ideal for both lab and in-field use.

602 Flexible Electrode Holder by Apera

Apera Instruments' 602 electrode holder is easily adjustable for your testing needs. The backside of the holder is designed so you can snap your cables in place; no more tangled cables during your tests. Holds up to three electrodes at once.

AI1104 pH Calibration Solution Kit (7.00, 4.00, 10.01) 16oz/bottle+3M KCl storage solution 4oz+CalPod by Apera

The Apera Instruments AI1109 pH Calibration Buffer Solution Kit includes three 16oz bottles of pH buffer solutions (pH 4.00, pH 7.00, and pH 10.01), one 4oz bottle of 3M KCL storage solution for pH/ORP electrodes, plus one piece of Apera's unique Cal, which helps users to organize all the solutions in one place and create no more mess in the calibration process.. The color-coded buffer solutions are standardized against NIST certified pH references within 0.01 pH at 25°C (77°F). It's ideal for the calibration of all kinds of pH meters. Since pH level is affected by temperature, a temperature/pH reference chart is provided on the bottle label for reference. The 3M KCL Storage Solution helps keep the sensitivity and accuracy of your pH probes.

All the solutions are double-sealed, not subject to the DOT shipping restrictions, and have a 2-year shelf life. The expiration date is printed on the bottle. MSDS documents are downloadable.

Note: Store at room temperature and away from direct sunlight. Keep the bottle tightly closed when not in use. Keep out of reach of children.

• High Accuracy (±0.01 pH): standardized against NIST certified pH references within 0.01 pH at 25°C (77°F). Ideal for the calibration of all kinds of pH meters
• Color-coded, Double-sealed, 2-Year shelf life. Expiration date and Temperature/pH reference chart provided for reference
• Apera's unique Cal included, no more mess for your meter's calibration
• The 3M KCL Storage Solution helps keep the sensitivity and accuracy of your pH probes
• Non-hazardous product (MSDS is downloadable)

AI1105 pH/Cond. Calibration solution kit (pH 7.00, 4.00), (1413 μS, 12.88 mS), 8 oz/bottle+storage solution 4oz+CalPod by Apera

The Apera Instruments AI1105 pH/EC Calibration Buffer Solution Kit includes two 8oz bottles of pH buffer solutions (pH 4.00 and pH 7.00), and two 8oz bottles of conductivity (EC) standard calibration solutions (1413 μS/cm and 12.88 mS/cm), one 4oz bottle of 3M KCL storage solution for pH/ORP electrodes, plus one piece of Apera's unique CalBox, which helps users to organize all the solutions in one place and create no more mess in the calibration process.

All the buffer solutions are standardized against NIST certified references at 25°C (77°F). It's ideal for the calibration of all kinds of pH and conductivity meters. Since pH and conductivity value is affected by temperature, the temperature & pH/conductivity reference charts are provided on the bottle labels for reference. The 3M KCL Storage Solution helps keep the sensitivity and accuracy of your pH probes.

All the solutions are double-sealed, not subject to the DOT shipping restrictions. The expiration date is printed on each bottle. 2-year shelf life for the pH buffers, 1-year for the conductivity solutions. MSDS documents are downloadable.

Note: Store at room temperature and away from direct sunlight. Keep the bottle tightly closed when not in use. Keep out of reach of children.

• Standardized against NIST certified references at 25°C (77°F), ideal for the calibration of all types of pH and conductivity meters
• Double-sealed, 2-year shelf life for the pH buffers, 1-year for the conductivity solutions. Expiration date and Temperature & pH/conductivity reference chart provided for reference
• Apera's unique CalPod included. No more mess for your meter's calibration
• The 3M KCL Storage Solution helps keep the sensitivity and accuracy of your pH probes
• Non-hazardous product (MSDS is downloadable)

AI313 2301T-S Conductivity Electrode (k=1, ATC, 8-pin connector) by Apera

Apera Instruments 2301T-S Conductivity/Temp. Electrode is built with a proprietary brush-resistant platinum black conductivity sensor, which ensures high accuracy in a wide range of conductivity measurements (0 to 200 mS/cm). The built-in thermistor tests temperature simultaneously and allows for auto. temperature compensation. The POM body makes it ideal for both laboratory and in-field use.

• Apera's proprietary platinum black conductivity sensor, ensuring high accuracy in a wide range
• Built-in temperature sensor, testing conductivity and temperature simultaneously, supporting ATC
• Equipped with a detachable probe storage cap, keeping the sensor hydrated when not in use
• POM body, ideal for use in harsh environments
• 8-pin connector

EC20 Value Pocket Conductivity Tester by Apera

Simply the most reliable pocket conductivity tester with the best value for all kinds of routine testing, including tap water/drinking water testing, agriculture, aquaculture, swimming pool, education, etc.

• The unique platinum black conductivity probe technology ensures wide range measurement with accuracy and consistency.
• An ultra clear 180° viewing angle screen with temp./EC value dual display and indications of completed auto calibrations and stable readings.
• Complete kit with calibration solutions (1413 μs and 12.88 μS), AAA batteries, and a lanyard all in a rugged carrying case.
• 1-2 points auto calibration and 0 to 50°C auto temp. compensation, ±0.1 F.S accuracy with 0 to 20.0 μS/cm wide conductivity measuring range
• Self-diagnosis with out-of -range warning and incorrect calibration warning.
• IP67 Water-proof and dust-proof, floats on water so no need to worry if you drop it in the water by accident.
• 200 hours' continuous operation powered by AAA batteries (with low power warning and auto power off in 8 min if no operation).

ORP60-DE Spare ORP/Temp. Electrode for ORP60-Z (double-junction) by Apera

The Apera Instruments ORP60-DE is the replacement ORP probe exclusively for ORP60-Z Smart ORP tester. This probe features a Platinum ORP sensor with a double-junction structure and built-in temperature sensor. Designed for general water solution testing's ORP measurement.

• Replacement ORP probe ONLY for ORP60-Z
• Platinum ORP sensor
• Double-junction structure
• Built-in temperature sensor
• Made for general water solution's ORP testing

ORP60-E Replacement Probe for ORP60 Pocket ORP Tester by Apera

The Apera Instruments ORP60-E probe is the replacement probe for ORP60 pocket ORP tester and PH60 series pocket pH testers, including PH60, PH60S, PH60F. This probe features a Platinum ORP sensor with a built-in temperature sensor and maintenance-free gel KCl electrolyte. Works great for common water solution and waste water's ORP testing. CE-Certified and comes with a 6-Month Warranty.

• ORP Range: ±1000 mV, Temperature Range: 0 - 50°C
• Platinum sensor with maintenance-free gel KCL electrolyte
• Works well for 12-24 months under proper use and care
• Made for common Water solution and waste water's ORP testing

PH20 Value pH Pocket Tester by Apera

Simply the most reliable pocket pH tester with the best value for all kinds of routine testing, such as tap water/drinking water testing, agriculture, aquaculture, swimming pool, education, etc.

• An ultra clear 180° viewing angle screen with temp./pH value dual display and indications of completed auto calibrations and stable readings.
• Complete kit with calibration solutions (4.00 and 7.00), AAA batteries, and a lanyard all in a rugged carrying case.
• 1-3 points auto calibration and 0 to 50°C auto temp. compensation, ±0.1 accuracy with 0 to 14.0 pH measuring range
• Self-diagnosis with out-of -range warning and incorrect calibration warning.
• IP67 Water-proof and dust-proof, floats on water so no need to worry if you drop it in the water by accident.
• Longest 400 hours' continuous operation powered by AAA batteries (with low power warning and auto power off in 8 min if no operation).