Feature:1. Portable and Backlit: Digital water tester is pocket size and light weight. Backlight function is for taking measurements anytime and anywhere2. Convenient and Practical: Turn on the switch, put the probe into the water and stir (make the small glass ball fully touch the liquid), wait for the value to be stable and then read out the value3. Horizontal Display: The test pen screen is designed to display horizontally, pH and temperature values can be read at the same time, making your work easier and more comfortable4. Temperature Compensation: PH meter has automatic temperature compensation function, adjust to water temperature, you can test the PH reading quickly5. Wide Compatible: The water quality test meter has a wide range of applications, such as drinking water, sewage treatment, water purification, aquaculture, hydroponics, etcSpecification:Item Type: Water TesterMaterial: ABS, PlasticTest Items: Water PurityMeasurement Category|: Total Dissolved Solidity Value, Celsius, Fahrenheit, ConductivityBattery Specifications: 1 x CR2032 Button Battery (included)Total Dissolved Solidity, Battery Capacity: 240mAh Total Dissolved Solidity, Range: 0 to 9999ppmTemperature Range: 0.1 to 80 DegreesApplication Range: Tap Water, Household Water Purifier, Commercial Water Purifier, Industrial Water Treatment Industry, Etc.Color: White.Package List:1 x Water Tester1 x User Manual1 x Storage BagNote:Shipped with button cell batteries