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ORP Meter

Also available: EC Meters | Hand Held TDS Meters | In-Line TDS Meters | PH Meters | Thermometers

ORP-200: Waterproof ORP Meter

Ideal for all ORP testing, including anti-oxidant measurement, water purification applications, ionizers, agriculture, aquariums & aquaculture, chlorine monitoring, cooling tower disinfection, environmental testing, fruit & vegetable washing, hydroponics, metal finishing, ozone system monitoring, pharmaceutical & medical applications, pools & spas, pulp bleaching, vineyards & wineries and water treatment.


Measures Oxidation Reduction Potential (Redox) and Temperature
Auto-ranging calibration with digital fine tuning
Includes storage solution in a sponge embedded in a clear cap
Waterproof housing (IP-67 rating)
Simultaneous temperature display
Digital Calibration (push button)
Auto-off function, data-hold function and low-battery indicator.
Display: large and easy-to-read LCD screen includes simultaneous temperature reading.
Replaceable Sensor (model SP-O2)
Factory Calibrated: The ORP-200 meter is factory calibrated to +200 mV
The meter can be easily recalibrated with digital calibration using the push buttons, rather than a screwdriver.
Includes a cap, batteries, and lanyard


ORP Range: -999 to +1000 mV
Temperature Range: 0-80 °C; 32-176 °F
Resolution: 1 mV; Temperature resolution is 0.1 °C/F
Accuracy: 0.5% (+/- 2mV)
Calibration: Digital calibration by push button.
Electrode: Replaceable glass sensor and reference tube electrodes
Housing: IP-67 Waterproof (submersible; floats)
Power source: 3 x 1.5V button cell batteries (included)
Dimensions: 18.5 x 3.4 x 3.4 cm (7.3 x 1.3 x 1.3 inches)
Weight: 96.4 g (3.4 oz)

Price includes delivery to UK Mainland

Price - £62.50 (£75.00 including vat and delivery)

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ORP Electrode Storage Solution

The HM Digital pH electrode storage solution can be used with the ORP-200 and other ORP meters.


For use with the ORP-200
Convenient size


Volume: 60 cc
Contents: Specially formulated KCl solution for ORP and electrodes (sensors)
Bottle: Combination twist off and eyedropper style cap
Made in Korea


Price - £7.33 (£8.80 including vat and delivery)

Also available: EC Meters | Hand Held TDS Meters | In-Line TDS Meters | PH Meters | Thermometers