Features: 【Upgrade with High Accuracy】: This PH meter with Built-in a sensitive electrode sensor, simply pressing "ON" and the result of the PH will appear on screen in a few seconds. Measurement Ranges: 0.00~14.00pH; Accuracy: +0.01pH. 【Easy Measurement & Calibartion】: The PH meter has an automatic temperature compensation function. It comes with 3 packs of calibration powder. PressingCAL for 5 seconds to enter the calibration modes, press in turn to select the powders corresponding to 6.86, 4, and 9.18 to complete the calibration. When it is long period of inactivity or after a frequent use, you can calibrate the tester with auto-calibration button for a proper calibration. 【AUTO Temperature Compensation】: No more need to take cares about the temperature of testing liquid. Our pH meter has built-in ATCfunction, It can accurately measure the pH value of the sample at any temperature in the ranges of 0°C-60°C. 【Backlight Display】: PH tester bright backlit digital display, easy to use no matter in day and night environment, and accurate measurement and clear display results. 【Portable Size & Wide Use】: This small PH tester allows you to carry in pockets and measuring anywhere. It is great for a wide ranges of drinking water, swimming pools, aquariums, hydroponics, food, beer or any other liquids. Specifications: Material:ABS Measuring range: 0-14.00pH Resolution: 0.01 pH Accuracy: 0.01 pH Batteries: 2X 1.5V LR44 (included) Automatic temperature compensation: 0-60Centigrade Color:Blue,Yellow,Green Package Includes: 1x PH Meter note: Please allow 1mm errors due to manual measurement. Due to the difference between different monitors, the picture may not reflect the actual color of the item.