Feature:1. Small Error: The measurement range of the PH meter is 0.0 to 14.0pH, which has high accuracy, small error and high stability2. Digital Display: The PH meter is a digital pen type PH meter, which is safe and reliable to meet your daily needs3. Naught Setting: The water meter supports naught adjustment, compensation potentiometer adjustment, and can be used to monitor various water4. 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 water5. Scope of Application: Suitable for measuring salt water aquariums, laboratory test water or hydroponically grown vegetables, testing swimming pool, tap and SPA waterSpecification:Item Type: PH MeterMaterial: ABSBattery Type: Built in 560mAh LR44 Button Battery (included)Measuring Range: 0.0 to 14.0pHAccuracy: 0.1pHResolution: 0.1pHScope of Application: Used to Monitor Various Water.Package List:1 x PH Meter2 x PH Buffer Powder1 x Calibration Screwdriver1 x User ManualNote:Shipped with Built in Battery