Feature:1. High accuracy and stable measurement, it is sensitive in response and accurate in measurement.2. Simultaneous display of pH value and ORP value on the screen, more convenient for observation.3. Easy electrode replacement, accurate, convenient and systematic monitoring and control of pH and ORP value.4. Made of high quality ABS material, it is durable, resistant to wear and corrosion, and has a long service life.5. Suitable for fish farming, wine production, swimming pool, laboratory, water treatment, college, liquid analysis (pH), pond, various industrial application, pond, planting, etc.Specification:Condition: 100% Brand NewItem Type: pH-ORP ControllerMaterial: ABSMeasuring Range:PH: 0.00~14.00PHORP: -1999~1999mVResolution:PH: 0.01PHORP: 1mVAccuracy:PH: 0.1%+0.02PHORP: 5mVSetting Range:PH: 3.50~10.50PHORP: -500~500mVRelay Contact: 5A/240V ACDisplay Mode: Dual 4-digit LED Digital DisplayPower: 2WWorking Environment Temperature and Humidity: 0~50, Humidity <95%Product Size: Approx. 160 x 105 x 40 mm / 6.3 x 4.1 x 1.6 inWeight: Approx. 1325g / 46.7oz.Package List:1 x pH-ORP Controller2 x Electrode1 x User Manual2 x Suction Cup1 x Plastic Screwdriver1 x Stainless Steel Bracket