ORP Meters

Electrode Holder with Flexible Arm Design The HI6221 includes a robust, flexible-arm electrode holder that securely positions probes during sa...

The Hanna edge® HI2002-01 Dedicated pH/ORP Meter is engineered with advanced features to deliver exceptional accuracy and enhanced usability for...

For precise pH measurements on the go, the HI98190 portable pH meter includes a robust HI12963 titanium body amplified pH electrode. This elec...

The Hanna HI98191 redefines portable pH, ORP, and ISE measurement with its advanced capabilities and robust design. Engineered for professionals...

The Hanna Instruments HI981914 is the ultimate professional solution for comprehensive pool and spa water quality analysis, engineered to delive...

Confident Probe Status at a Glance Know your pH/ORP pro...

GroStar® GS4-P 6-in-1 Combo Pen Tester (Gen II) – Advanced Nutrient & Water Quality Monitoring for Growers For growers who demand precision, r...

Apera Instruments GroStar® GS1-P pH/ORP Pen Tester Kit (Gen II) – Precision pH & ORP Monitoring for Growers & Hydroponics The GroStar® G...

Apera Instruments ORP60 Premium ORP Pocket Tester – Reliable Redox Potential Monitoring for Pools & Water Treatment The Apera Instruments ORP60...

Description The Milwaukee pH58 MAX Waterproof 3-in-1 pH/ORP/Temp. Tester is one of our most accurate cost effective, well rounded, rugged and re...

Lab Grade. High Performance. Automated. Tough. The Milwaukee MW106 MAX Waterproof 3-in-1 pH/OPR/T...

Lab Grade. High Performance. Automated. Tough. The Milwaukee MW105 MAX Waterproof 3-in-1 pH/OPR/T...

Lab Grade. High Performance. Automated. Tough. The Milwaukee MW150 MAX 3-in-1 pH/OPR/Temp. Bench ...

Lab Grade. High Performance. Automated. Tough. The Milwaukee MW160 4-in-1 MAX pH/OPR/ISE/Temp. Lo...

Lab Grade. High Performance. Automated. Tough. The Milwaukee MW151 MAX 3-in-1 pH/OPR/Temp. Loggin...