Product Name: Digital Orp-200 Waterproof Professional Orp / Temp Meter Orp Tester for All Orp Testing Model NO.: ORP-200 Type: Orp/Temp Meter Certification: RoHS, FCC, CE Portable: Portable Appliance: Food Analysis, Medical Research, Biochemistry, Hydroponics Aquariums and More Display: Digital Orp Range: -999 to +1000 Mv Power Source: 2 X 1.5V AAA Included Calibration: Digital Calibration by Push Button Transport Package: Carton Packing Specification: 18.5 x 3.4 x 3.4 cm Origin: China HS Code: 84219910 Product Description ORP-200ORP-200: Waterproof Professional Series ORP/Temp MeterThe ORP-200 is a professional grade 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.FEATURES:Measures Oxidation Reduction Potential (Redox) and TemperatureAuto-ranging calibration with digital fine tuningWaterproof housing (IP-67 rating)Digital Calibration (push button)Auto-off function, data-hold function and low-battery indicatorLarge 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 mVUPGRADED: Includes a translucent cap, 2 Triple A (AAA) batteries, and lanyardProduct Description:ORP Range: -999 to +1000 mVTemperature Range: 0-80°C; 32-176°FResolution: 1 mV; Temperature resolution is 0.1°C/FAccuracy: 0.5% (+/-2mV)Electrode: Replaceable glass sensor and reference tube electrodesHousing: IP-67 Waterproof (submersible; floats)UPGRADED: Power source: 2 Triple A (AAA) includedDimensions: 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)Application: Aquaculture, Aquarium, Drinking Water, Food & Beverage, Industrial, Pool/Spa, Water Treatment, Window Cleaning/CarwashMore Choices: