The basic tool for measuring ph andamp 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 Main unit :190mm x 20mm Handle probe: 150mm Probe (only): 48mm Cable (only): 130mm Item weight: 161g or 5.7ounce Package size: 240 x 145 x 30mm or 9.5 x 5.7 x 1.2in Package weight: 221g or 7.8ounce