The basic tool for measuring ph & chlorine quickly and accurately is the most commonly used water disinfectant for killing harmful, algae and microorganisms. Features: The fine tool for keeping a pool or spa in a safe chlorine and pH range, without chemicals or guesswork. This electric meter saves you time and money.Quickly test PH, organic pollution and harmful substancesin water.Large screen displays the test result on pH and chlorine level for easy and accurate reading. Easy to operate and convenient to carry, you can quickly test whether chlorine and PH are in the fine range.No pollution, no consumable, self-cleaning. Specifications: Material: Plastic Power Supply: 1 x 1.5V AA Batteries(not included) Main unit :190mm * 20mm Handle probe: 150mm Probe (only): 48mm Cable (only): 300mm Item weight: 161g / 5.7ounce Package size: 240 * 145 * 30mm / 9.5 * 5.7 * 1.2in Package weight: 221g / 7.8ounce Packing List: 1 * pH and Cl2 Tester with Probe 1 * Instruction Manual 1 * Sand Paper Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-YJL official store