Features: 1.VERSATILE: Water chlorine PH meter keeps pool or spa water in a safe PH and chlorine range without chemicals or guesswork. 2.QUICK DETECTION: Chlorine PH analyzer quickly detects PH levels, organic contamination and harmful substances in water. 3.LARGE SCREEN: Water quality tester has a large screen that displays PH and chlorine test results for easy and accurate reading. 4.EASY TO USE: Water quality analyzer is easy to operate, easy to carry, and can quickly test whether the chlorine and ph values are in the fine range. 5.SAFE TO USE: Water quality meter is free of pollution and consumables when used, it is also self cleaning and convenient for the next use. specification:Item Type: Water Quality Tester Material: ABS Handle Probe Length: Approx. 150mm/5.9in Cable Length: Approx. 130mm/5.1in Battery Type: 1 x AA Battery (not Included) PackageList: 1 x Water Quality Tester 1 x Abrasive Sheet 1 x Instruction Manual NoteAll data are measured manually, and there are certain errors in the measurement results.