1. The WiFi online pH ORP controller allows you to real time monitor the pH and ORP via your smartphone on the Tuya APP(for ), it is compatible with ios and Android system, perfect for 24 hours online monitoring.2. Widely used to test the pH / Temperature / ORP (Oxidation Reduction Potential) of water.3. With relay output power socket, you can control the pH & ORP value according to your requirements.4. You can replace the fuse and fast with external replacement. Detachable and replaceable pH and ORP electrodes.5. With plug for air outlet stone, generators, oxygen pumps, carbon dioxide regulators, solenoid valves and other ORP & pH .6. Easy calibration of pH/ORP with just a mini-screwdriver and automatic temperature compensation.7. Clear LCD with backlight, 3 results displayed simultaneously. Easy to use and instant display of results.8. Test temperature in / (switchable units) and can online monitor and control ORP & pH for a long time.9. Apply in water sources, soil- growing, aquarium, hydroponics, laboratory, spas, environment water, swimming pools, water purification , etc.10. APP Language : English, French, , Russian, Japanese, Korean, Spanish, Chinese, Chinese (Only supports Chinese and English in offline state)APP Name: TuyaOS Requirement: Compatible with iOS and Android systemRange: pH: 0.00~14.00pHORP: -2000~2000mVTemperature: 0~50 (32~122)Resolution: pH: 0.01pHORP: 1mVTemperature: 0.1(0.2)Accuracy: pH: 0.1pHORP: 5mVTemperature: 1.0Alarm Setting Range: pH: 0.00~14.00pHORP: -2000~2000mVColour:blue+whiteMaterial: ABSPlug Type :EU Plug,it applies to Indonesia, , , , Italy and so on.Voltage: AC100-240VPackage Contents:1 x 3 in 1 Water Quality Tester1 x pH Electrode1 x ORP Electrode1 x Temperature Electrode2 x Suction Cup4 x Screw4 x Anchor Bolt1 x Manual (English)