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 4 pH buffer solution in a sponge embedded in a clear cap .. Simultaneous temperature display .. Auto-off function, data-hold function and low-battery indicator. .. Display: large and easy-to-read LCD screen includes simultaneous temperature reading. ... Includes a cap, batteries, and lanyard ... 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.

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. .. Housing: IP-67 Waterproof (submersible; floats)

Electrode: Replaceable glass sensor and reference tube electrodes

Manufacturers 1 Year Warranty ...