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pH Meters and Sensors

Digital Combo pH/TDS/Temperature Testing Meter

Digital Combo pH/TDS/Temperature Testing Meter - pH/TDS Calibration Kit. No more switching between meters, the Combo Tester does it all !

Digital TSD Meter & TSD Calibration Kit

Replaceable graphite electrode. TDS range: 0-2000 ppm. Temperature range: 0.0 to 60.0°C/32.0 to 140.0°F. 350 hours of continuous use (about 1000 tests).  

Digital pHep4 Tester - pH Calibration Kit

pH range: 0.0 to 14.0. Accuracy: ± 0.1 pH. Temperature Range: 0.0 to 60.0°C/32.0 to 140.0°F. Replacement electrode.

Extech PH100 ExStik 

pH Meter

Measures pH from 0.00 to 14.00. Automatic 4, 7 and 10 buffer recognition/calibration. Automatic temperature compensation.

pH / EC / TDS Hand Meter 

for Growers

Three meters in one. The portable HI9813 is an extremely convenient tool, measuring three of the most important parameters in agriculture with a single instrument.

pH-EC-TDS Meter

Features: Great for hydroponics. Splash-proof casting. Measures pH, EC and TDS. Hand held. Temperature compensation.

pH Meter w/2 Point Manual Calibration

Includes: One professional open junction electrode 9 volt battery One packet of calibration solution. Warranty: 2 year for unit, 1 year for probe.

 Nutra-Dip Continuous Tri Meter (pH/TDS/Temp)

The Nutra-Dip Tri-Meter (CMS) Continuous Monitoring System meter gives you the ability to monitor pH level, Total dissolved solids (TDS) and Temperature all at the same time.

Peters pH Pro Meter

Three Meters in one. The portable HI9813 is an extremely convenient tool, measuring three of the most important parameters in agriculture with a single instrument.

Hanna Gro'Chek Portable pH/TDS/EC Meter (HI9813-0)

This meter is almost identical to the HI 9813, except it is slightly smaller and weighs about half as much, and has a higher accuracy in the pH range (+/- 0.1 instead of 0.2).

Hanna Gro'Chek Portable pH/TDS/EC/°C Meter (HI9813-6)

This meter is identical to the HI 9813-0, with the addition Hanna's new Cal-Check calibration feature. This feature enables the grower to verify that the electrode is clean and calibrated.

Hanna Soil pH/Temp Waterproof Meter (HI99121)

Measure pH of Soil Directly with a special pH electrode. Amplified, ATC Electrode - The advanced HI 1292D incorporates a temp sensor and has a tiny amplifier for excellent stability.

Hand Held Digital pH Meter

Accurately measures any liquid pH from 0.0 - 14.0. Ideal for marine reef and freshwater aquariums. Also great for pools, spas, and hot tubs. Large easy to read 3/4 inch high LCD display. Includes a test solution to keep the meter reading accurate. Durable construction for long life and reliability.

Commercial Truncheon PPM/EC/CF Meter

Automatic Temperature Compensation, Range: 140-2520 ppm, Accuracy +/-4% full scale.  Features: 100% waterproof, Reads in PPM, EC & CF, Full 2-year warranty, Factory calibrated; does not need to be recalibrated, Auto on & off feature, Powered by three standard ''AA'' batteries, Battery life minimum of 1 year.

Chemtrol Replacement Sensors

Each includes 10 foot shielded cable and BNC connector.

Standard Replacement pH/ORP Sensors

Standard replacement pH/ORP sensors are reliable and cost-effective direct replacements for sensors used in most brands of pool controllers. They are made of a tough chemical-resistant polymer and feature low-noise coaxial cable for high reliability. They come standard with BNC-style connectors.

Heavy Duty Replacement pH/ORP Sensors

Made of Kynar, a rugged material impervious to chemicals. Their large design holds more electrolyte so they last longer than standard sensors.

Aqua Medic pH Electrode

Aqua Medic pH Electrode is a high quality product designed for precision measurement, and have long, trouble-free operational use. This is a standard electrode with plastic shaft.

Hanna HI1270 Replacement PH Electrode

Replacement Electrode Water Testing Meter Accessories Replacement pH Electrode Screw Type Single Junction Co

Palm PH Meter Extech PH220-C

Water Resistant Palm pH Meter, pH Range 0 to 14, pH Accuracy +/- 0.01, pH Resolution 0.01, Temp Range 0 to 99.9 C, Temp Range 32 to 212 F, Temp Accuracy +/- 0.8 F, +/- 0.5 C, Temp. Resolution 0.1 Deg.