Description power sockets. Both electrodes are removable and can be replaced at any time. With relay output power sockets, you can plug your own 110V/220V equipment, such as air outlet stone, ozone generators, oxygen pumps, carbon dioxide regulators, solenoid valves and other ORP and pH control devices. Simply set the desired Hi/Low pH/oxidation reduction value in the controller. If the pH or ORP value currently measured is lower than the set value, it will open the device. If the measured value is higher than the set value, it will close the device. Suitable for aquarium pool, soil-free growing, laboratory, and environment water. Specifications:Plug Type: AU / EU / US / UK (Optional)Material: ABSPower Supply: AC230, 50Hz (EU) / AC120V, 60Hz (US)APP Name: TuyaOS Requirement: Compatible with iOS and Android systemRange: pH: 0. 00~14. 00pH ORP: -2000~2000mV Temperature: 0~50 (32~122)Resolution: pH: 0. 01pH ORP: 1mV Temperature: 0. 1(0. 2)Accuracy: pH: 0. 1pH ORP: 5mV Temperature: 1. 0Alarm Setting Range: pH: 0. 00~14. 00pH ORP: -2000~2000mVTemperature Compensation: 0~50 (32~122)Operating Temperature: 0~50 (32~122)Length of Sensor Line: 2m / 6. 56ftpH/ORP/TEMP Controller Size: 160 * 95 * 40mm / 6. 30 * 3. 74 * 1. 57in (Excluding Electrode Connector)Control Socket Size: 130 * 65 * 53mm / 5. 12 * 2. 56 * 2. 09in (Including Fuse)Item Weight: 872g / 1. 92lbPackage Weight: 1075g / 2. 37lbPackage Size: 32 * 20. 5 * 7. 6cm / 12. 60 * 8. 07 * 2. 99inPacking List:1 * 3 in 1 Water Quality Tester 1 * pH Electrode1 * ORP Electrode1 * Temperature Electrode2 * Suction Cup4 * Screw4 * Anchor Bolt1 * User Manual (English)