Essential tools for quickly and accurately measuring pH and chlorine are the most commonly used water disinfectants to kill harmful algae and microorganisms. Features: An advanced tool that keeps your pool or spa within safe chlorine and pH ranges without chemicals or guesswork. This meter saves you time and money. Quickly detect pH value, organic pollution and harmful substances in water. The large screen displays the test results of pH value and residual chlorine content, and the readings are convenient and accurate. It is simple to operate and easy to carry, and can quickly detect whether the residual chlorine and pH value are within a good range. No pollution, no consumables, self-cleaning. Specifications: Material: Plastic Power supply: 1 x 1.5V AA battery Main unit: 190mm*20mm Handle probe: 150mm Probe (only): 48mm Cable (only): 300mm Product weight: 161g/5.7oz Packaging size: 240*145* 30 mm/9.5 * 5.7 * 1.2 inches Packing weight: 221 g/7.8 oz Packing list: 1 * pH and Cl2 tester with probe 1 * Instruction manual 1 * Sandpaper