Features 1、Sensitive to test, low‑impedance glass‑sensitive bulbs are molded at a high temperature of 10,000 degrees Celsius. 2、The high‑definition screen displays accurate values and reads the values quickly, which is convenient for obtaining the PH value of water quality in real time. 3、Easy to use, with automatic calibration, reducing the trouble of calibration, calibration can be done once every six months. 4、Portable pH tester, the test range is 0.00‑14.00pH, the resolution is 0.01pH, and the error is 0.05pH. 5、Long battery life, built‑in 2 button batteries, battery capacity of 160mAh can be used for a long time. Specification Item Type: PH Tester Material: Plastic Color: Yellow Range: 0.00-14.00pH Resolution: 0.01pH Error: 0.05pH Working Temperature: 0-60℃ Battery: Type: 2 x Button Batteries (Included) Model: LR44 Capacity: 160mAh Package List 1 x PH Tester 3 x Calibration Reagent 1 x Manual