Features1Automatic Calibration: The pH meter has automatic temperature compensation that adjusts for water temperature and water quality, giving a pH reading almost instantly. Likewise, you can use the calibration buffer powder to calibrate the tester in one click. 2Versatile: Ideal for home or laboratory use; ideal for testing pH balance in drinking water, swimming pools, aquariums, pass through systems, spas or hydroponics. 3Automatic Temperature Compensation: No longer need to care about the temperature of the test liquid, such as pH. The meter has built?in (ATC) automatic temperature compensation to accurately determine the pH of a sample at any temperature in the range of 0 DegreeC?80 DegreeC (32 DegreeF?176 DegreeF). 4Lightweight and Easy To Use: Just remove the protective hat, dip the pH meter electrode into the solution, and measure at the push of a button. 5LCD Backlight Display: The pH tester has a bright backlight LCD display, which is easy to use no matter day or night, accurate measurement and clear display results.SpecificationItem Type: PH MeterMaterial: ABSMeasuring Range: 0.00-14.00phAccuracy: +/-0.01phResolution: 0.01phOperating Temperature: 0-60 (32-140)Adjustment: 2 Point Automatic RecognitionBattery: LR44 x 2 (Battery Not Included)Weight: Approx.114g / 4ozPackage List1 x Detection Pen 1 x User Manual 3 x Detection Powder Package 1 x Storage Box