Portable Detail 2In 1 Water Quality PH CL2 Chlorine Tester Level Meters for Swimming Pool Spa JacuzziSafe for Chlorine-based Tablet Pool, pH must be correct. If the pool water is not properly balanced, the chlorine will not work at full force kill. Lightweight and easy to carry, convenient to use, you can save time and money with this electrotester. An essential tool for fast and accurate ph and chlorine reading, as chlorine is most commonly used in water by killing algae and microorganisms. A great tool for keeping your pool or spa within safe chlorine and PH ranges, with no chemicals or guesswork. 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. Condition: NewItem Type: Water Quality TesterHost Size: Approx. Size: Approx. 190x120mm / 7.5x4.7in Probe with Handle Length: Approx. 150mm / 5.91in Probe Length: Approx. 48mm / 1.89in Cable Length: Approx. 130mm / 5.12in Weight: Approx. 259g / 9.1oz Battery: 1 x 1.5V AA Alkaline Battery (Not Included)Recommended Chlorine Content for Pools and Spas 1.2 to 1.7 ppm Recommended pH for Pools and Spas is 7.2 to 7.8phColor: White+Grey Material: Plastic Package Content:1 * Swimming Pool TesterOnly the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement error is +/- 1-3cm.