Feature: 1. Water Quality Tester: Compatible for iOS and for Android phone via for Tuya app. It allows for wireless remote monitoring. APP support for device sharing and group creation, with offline reminder function. 2. Multifunctional: Professional PH, EC, total dissolved solids, S.G, TEMP 5 in 1. PH supports 6.86, 4.01, 9.18, 7.00, 4.00, and 10.00. Supports 2 calibration methods and the function of exporting data via email in intervals of every hour, day, week, and month. 3. Accurate and Easy Readig: PH temperature meter can read accurate data quickly and easily. Big digital display for easier reading. 4. Wide Application: You can use this tool to monitor any type of water may it be in your aquarium, swimming pool, spa, laboratories, hospitals, hydroponics, agricultural, industrial, and also field water analysis procedure. 5. Multi Language Support: Supports Chinese, Traditional Chinese, English, French, German, Russian, Japanese, Korean, Spanish. Specification: Item Type: Water Quality Tester Material: ABS Weight: Approx. 492g / 17.4oz Range: pH: 0.00pH-14.00pH EC: 0-19900us/cm 0-199.0ms/cm TDS: 0-19900ppm 0-199.0ppt SG: 0.990-1.400 Temperature: 0°C-50°C (32°F-122°F) Resolution: pH: 0.01pH EC: 1us/cm (<1999us/cm) 10us/cm (>1999us/cm) TDS: 1ppm (<1999ppm), 10ppm (>1999ppm), 0.1ppt SG: 0.001 Temperature: 0.1°C (0.2°F) Accuracy: pH: ±0.1pH Temperature Compensation: 0°C-50°C Working Temperature: 0°C-50°C Wireless WiFi Features: Product Comes with for Tuya APP Compatible for IOS and for Android Smartphones Language Support: Chinese, Traditional Chinese, English, French, German, Russian, Japanese, Korean, Spanish. Package List: 1 x Water Quality Tester1 x Plug1 x User Manual1 x Electrode2 x Suction Cup2 x Screw2 x Expansion Plug