Feature: 1. Multifunctional: This water quality tester can test the temperature, pH, salinity, etc. of the water, and the test data is clear and visible at a glance. 2. Control Water Quality: This controller can accurately detect the quality of the effluent, so as to adjust the water quality in time and adjust according to the needs. 3. Remote Monitoring: This digital water quality tester can remotely monitor online wirelessly, receive real time data, store automatically, and is easy to use. 4. APP WIFI Function: Dual control with APP, pH, TEMP, salinity water quality online controller, in places where there is no wireless WiFi, you can use the mobile phone to open the hotspot for APP connection. 5. Supported Languages: Support Chinese, traditional Chinese, English, French, German, Russian, Japanese, Korean, Spanish languages, you can use it with confidence. Specification: Item Type: Water Quality Controller Material: ABS Gross Weight: 1075g / 37.9oz Product Size: Approx.16 x 11.5 x 4cm / 6.3 x 4.5 x 1.6in Range: pH 0.00pH-14.00pH Salinity: 0-199.9 ppt Temperature: 0°C-50°C(32°F-122°F) Resolution: pH 0.01 pH Salinity: 1ppm(<000ppm) 10ppm (>1000 ppm) 0.1ppt Temperature: 0.1℃(0.2°F) Alarm Setting Range: salinity 0-20000 PPM Temperature Compensation: 0°C-50 °C Operating Temperature: 0℃-50℃ Features: WIFI, APP function Suitable: for water source, soilless culture, aquarium, laboratory, hot spring, environmental water, swimming pool, water purification system, etc. Package List: 1 x Water Quality Tester1 x Cable1 x Electrode10 x Accessory1 x Instruction Manual Note: The electrode must be recalibrated: 1. Not calibrated for a long time. 2. Regular and long term continuous use. 3. High precise is required.