Features: - Special designed for family-sized swimming pool or spa. - Quickly test PH, organic pollution and harmful substances water. - A convenient tool to test water pH and chlorine level for swimming pool and spa. - 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 ideal range. Specifications: Powered by: 1*1.5 V AA battery (not included) Chlorine levels of security within the measuring range: 1.2-1.7ppm PH value of the level of security within the measuring range: 7.2-7.8 Package included: 1 x Water Quality Tester Notes: 1. Manual measuring, please allow 1 ~ 3mm error,thank you. 2. Due to the difference between different monitors, the picture may not reflect the actual color of the item. We guarantee the style is the same as shown in the picture.