Features: Easy to Use: Only few seconds know water quality, high accuracy and faster. PH Meter: PH meter could measure pH value, reliable and quick readings. Measurement Range: Full measurement range of pH -2 to 16, easy to read and . LCD Display: The LCD clearly displays the data with back-light. Easy to Carry: Compact structure and lightweight, handheld design for portability. Widely Used: Great for all home measuring and laboratory pH testing. Applications: Perfect for aquariums, swimming pools,food processing. Specification: Material: ABS Color: White Size: About 17*5.5*3 cm/6.7*2.2*1.2 inch(L x W x H) Calibration method: 3-point automatic calibration Resolution: 0.01 PH Battery: 2*1.5 V button battery (included) Range: -2.00-16.00 PH Temperature range: 0-80 ºC Package included: 1 * PH Meter 3 bag of Powder 1 * User Manual