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Hanna pH/ORP/Temperature Combo Tester
The HI98121 is a reliable, waterproof tester that ensures quick and easy measurements of both pH and ORP. This accurate pH and ORP tester features 0.01 pH resolution with automatic two-point calibration and temperature compensation in a single, portable, pocket device. No more switching between meters for your routine measurements.
- ±0.05 pH/ ±2 mV Accuracy
- Replaceable pH Electrode
- Great for pools, sanitizers, wastewater, & industrial
