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Redox (ORP) Meter

accepta-orp-meter-RE300This Redox (ORP) meter, the Extech ORP has flat surface electrodes which provides “On-the-Spot” measurements and also has a large display with bargraph.


  • Measures ORP from –999 to 999mV with high resolution of 1mV and ±4mV accuracy.
  • Automatic electronic self-calibration.
  • Simulated analogue bargraph displays change in ORP reading.
  • Memory stores and recalls 15 readings and saves last calibrated value.
  • Data validation indicators show user the reading is stabilised.
  • Large 3-1/2 digit (2000 count) Digital display with bargraph.
  • Data Hold, Auto shut-off and low battery indicator.
  • Easy to replace electrode module is interchangeable with pH and Chlorine modules; (built in chip automatically recognises the type of probe plugged in for specific measurements).
  • Waterproof (IP57) design floats in water and protects the meter in wet environment.
  • Complete with meter and electrode, protective sensor cap, sample cup, four 3V CR-2032 batteries and neck strap.


ORP (mV): 999 to 999mV
Resolution: 1mV
Accuracy: ±4mV
Power: 4 x CR2032 Button Batteries
Dimensions: 1.4 x 6.8 x 1.6” (35.6 x 172.7 x 40.6mm)
Weight: 3.85oz (110g)
Optional Extras: Weighted Base and 5 Solution Cups
Probe (CL205)

Technical Support

If you require additional information or specialist technical support concerning our professional redox (ORP) meters please contact Accepta's technical support team.

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