1、2 in 1 Water Tester: Wide in testing range, the water quality tester is able to test the pH and temperature of drinking water and life water. 2、Multiple Functions: Designed to have large LCD screen, auto shutdown, waterproof casing, data retention function, low power indicator, etc. 3、The Glass Electrode: The highly accurate glass electrode is also waterproof, which enables quick response and low resistance in testing. 4、Simpler Calibration: Has pH calibration buffer solution and electrode protection liquid to calibrate the pH valve to 4.0, 7.0 and 10.0. 5、Broader Application: Suits for hydroponics, horticulture, swimming pool and spa, aquarium and coral tank, ionized water generator and more. Item Type: Water Quality Tester Model: PH-80 Material: ABS PH Range: 0 - 14 Temperature Measurement Range: 1-55℃, that is, 32-130℉. PH Resolution: 0.1 pH Temperature Resolution: 0.1℃ or ℉. PH Accuracy: ± 0.2 pH. Temperature Accuracy: ± 2%. Calibration: Digital automatic calibration, one point. Electrode: Glass sensor and reference tube electrode. Power Supply: 3 x 1.5V LR44H button battery, shipped without battery. Product Features: 1. Measure pH and temperature. 2. One touch automatic digital calibration. 3. Waterproof casing. 4. Display temperature at the same time. 5. Fashionable and lightweight design. 6. Large LCD display. 7. Automatic temperature compensation ATC. 8. Automatic shutdown function, data retention function and low battery indicator. 1 x Water Quality Tester 1 x pH Calibration Buffer Solution 1 x Electrode Protection Liquid