HI98121 Combo pH / ORP Tester

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Maximum Purchase:
20 units

The HI98121 is a waterproof ORP, pH and temperature meter. ORP can be measured in a range of +/-1000mV and temperature can be displayed in °C or °F. The meter is factory calibrated and measurements are highly accurate with a unique stability indicator on the LCD.



  • Highly Accurate & Simple to Use
  • Floating and Waterproof Body
  • Set/Hold Button allows user to freeze readings
  • Supplied with protective cap, electrode removal tool, batteries and instructions



  • ORP Range: ± 1000 mV
  • pH Range: -2.00 to 16.00 pH
  • Temp. Range: -5.0 to 60.0°C / 23.0 to 140.0°F
  • Accuracy: ±2 mV, ±0.05 pH, ±0.5°C / ±1°F