1. Essential tool for quick and accurate pH and chlorine measurements, as chlorine is the most widely used water sanitizer killing bacteria, algae and microorganisms. 2. An ideal tool for keeping your pool or spa within safe chlorine and pH ranges, without chemicals or guesswork. 3. An electro-tester for testing pH and chlorine (Cl2) levels in water for routine monitoring of pH and chlorine levels in swimming pools, spas and various water sources. 4. Save time and money with this electrotester. Note: Probes are not recommended for immersion in any liquid other than pool or spa water. Contents: 1 x pH and Cl2 tester with probe 1 x User manual Features: Name: PH CL2 chlorine tester Recommended chlorine level for swimming pools and spas is 1.2 to 1.7 ppm Recommended pH level for swimming pools and spas is 7, 2 to 7.8 Dimensions: Power supply: 1 AA alkaline battery (1.5V) (not included) When chlorine and pH levels go wild, it can lead to diarrhea and infections ear and skin. Proper chlorine and pH levels keep bad bacteria at bay: If the pH rises too high, the germ-fighting power of chlorine runs out. Chlorine can also be eaten if lots of nitrogen (debris, puddles, sunscreen, or perspiration) or other organics enter the pool. That 39;s why it 39;s best to test chlorine and pH levels all the time they can change daily depending on how the pool is used. Keeping your pH levels in the correct range is important for keeping your pool equipment and finish intact. Your chlorine dissolves faster with a low pH level. High pH levels render chlorine inactive. Number of products: 1 piece color: grey Size: 125*180mm,