1、Accurate Testing: EC PH temperature tester can do accurate testing, large screen display, so you can observe more intuitive and convenient. 2、One Key Calibration: The temperature and humidity TDS tester meter can do one key calibration, and also has a temperature compensation function to reduce errors. 3、Alloy Probe and Glass Electrode: Temperature humidity monitor has an elongated alloy probe and high sensitivity glass electrode, easy to operate. 4、Wall Mounted: EC PH temperature tester monitor is wall mounted, you can easily install it on indoor and outdoor wall. 5、Multi Purpose: The temperature tester is suitable for domestic water, swimming pool, aquaculture, environmental water quality, agricultural water, fish tanks water quality, greenhouse flowers, barrel water, community water station. Item Type: TDS EC PH Temperature Humidity Tester Material: ABS, Alloy, Glass electrode Battery: Lithium battery 3.7V 400mAh (with built in battery) Application: Use for domestic water, swimming pool, aquaculture, environmental water quality, agricultural water, fish tank water quality, greenhouse flowers, barrel water, community water station Basic Parameters TDS: 0-9999ppm EC: 0-9999μS/cm PH: 0.00-14.00PH Humidity: 10%-99% Temperature: 0-60℃ 1 x Tester 2 x TDS Sensor 2 x Tee Connector 1 x PH Sensor 3 x Calibration Powder 1 x Data Cable 1 x Snap Button 1 x Instruction Manual 1 x Plastic Box