• Measures Oxidation Reduction Potential (Redox) and Temperature
• Auto-ranging calibration with digital fine tuning
• Includes 4 pH buffer solution in a sponge embedded in a clear cap, so you can see if it's dried up
• Waterproof housing
• Simultaneous temperature display
• Measurement Range: -999 to +1000 mV
• 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.
• 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

Incredibly accurate!

A handheld / portable ORP tester that is perfect for both consumer or commercial use.

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.

• 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: 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 without case: 96.4 g (3.4 oz)