1. All readings go through automatic temperature compensation (ATC). 2. Large screen display, high resolution and , fast and accurate. 3. Simple operation, accurate measurement and automatic correction. 4. Application areas: aquaculture, industry and agriculture, environmental protection, food manufacturing, water purification, swimming pools, aquariums, fish hatcheries, food processing, laboratories, paper industry, etc. Range: pH 0.00-14.00, Temperature 0-50 (32F-122F) Resolution: pH 0.01PH, Temperature 0.1C (0.2F) Accuracy: 0.1pH, Temperature 1.0C Power supply: 1 x button battery(Not included) Temperature Compensation: 0C-50C Operating Temperature: 0C-50C Color: As Shown Material: Metal+Plastic Package Contents: 1 x Water quality tester Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.