Feature 12 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. 2Multiple Functions: Designed to have large LCD screen, auto shutdown, waterproof casing, data retention function, low power indicator, etc. 3The Glass Electrode: The highly accurate glass electrode is also waterproof, which enables quick response and low resistance in testing. 4Simpler Calibration: Has pH calibration buffer solution and electrode protection liquid to calibrate the pH valve to 4.0, 7.0 and 10.0. 5Broader Application: Suits for hydroponics, horticulture, swimming pool and spa, aquarium and coral tank, ionized water generator and more.SpecificationItem Type: Water Quality TesterModel: PH-80Material: ABSPH Range: 0 - 14Temperature Measurement Range: 1-55, that is, 32-130. PH Resolution: 0.1 pHTemperature 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. .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }Package List1 x Water Quality Tester1 x pH Calibration Buffer Solution1 x Electrode Protection Liquid