Features 1、Small Error: The measurement range of the PH meter is 0.0 to 14.0pH, which has high accuracy, small error and high stability 2、Digital Display: The PH meter is a digital pen type PH meter, which is safe and reliable to meet your daily needs 3、Naught Setting: The water meter supports naught adjustment, compensation potentiometer adjustment, and can be used to monitor various water 4、ABS Material: The PH tester digital uses ABS material, which is corrosion resistant and easy to carry, mainly used to detect the PH value of water 5、Scope of Application: Suitable for measuring salt water aquariums, laboratory test water or hydroponically grown vegetables, testing swimming pool, tap and SPA water Specification Item Type: PH Meter Material: ABS Battery Type: Built in 560mAh LR44 Button Battery (included) Measuring Range: 0.0 to 14.0pH Accuracy: ±0.1pH Resolution: 0.1pH Scope of Application: Used to Monitor Various Water Package List 1 x PH Meter 2 x PH Buffer Powder 1 x Calibration Screwdriver 1 x User Manual