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 New Item Type: pH-ORP Controller Material: ABS Measuring Range: PH: 0.00~14.00PH ORP: -1999~1999mV Resolution: PH: 0.01PH ORP: 1mV Accuracy: PH: ±0.1%+0.02PH ORP: ±5mV Setting Range: PH: 3.50~10.50PH ORP: -500~500mV Display Mode: Dual 4-digit LED Digital Display Power: 2W Working 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 in Weight: 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