ORP-200: Waterproof Professional Series ORP/Temp Meter


HM Digital ORP-200 is a waterproof professional-grade ORP meter ideal for all ORP testing including anti-oxidant measurement, ionizers, agriculture, aquariums & aquaculture, chlorine monitoring, cooling tower disinfection, environmental testing, fruit & vegetable washing, hydroponics, metal finishing, ozone system monitoring, pharmaceutical & medical, pulp bleaching, vineyards & wineries, and water treatment.

Very easy to use, just turn on it and immerse the meter in the solution to be tested, then stir gently and wait for the reading to stabilize.

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  • Measures Oxidation Reduction Potential (Redox) and Temperature
  • Auto-ranging calibration with digital fine-tuning
  • Waterproof housing (IP-67 rating)
  • Digital Calibration (push button)
  • Auto-off function, data-hold function, and low-battery indicator
  • Large easy-to-read LCD screen with simultaneous temperature display.
  • Replaceable Sensor (model SP-O2)
  • Factory Calibrated: The ORP-200 meter is factory calibrated to +92 mV


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