Features： 1、EASY TO OPERATE: The swimming pool PH chlorine tester is easy to operate and requires no more chemicals. 2、PURPOSE: PH chlorine meter is a handy tool to test water PH and chlorine levels in swimming pools and spas. 3、EASY TO READ: The large screen displays the test results of PH value and chlorine value, and the reading is convenient and accurate. 4、PORTABLE: The swimming pool PH meter is lightweight, compact and easy to carry. There is a hole for easy hanging. 5、 MATERIAL: The water quality tester is made of plastic casing, which is sturdy and durable. Specification： Item Type: Water Quality Tester Material: Plastic Size: Approx. 19 x 12cm/7.5 x 4.7in Probe Length: Approx. 15cm/5.9in Battery: 1 x 1.5V Alkaline Battery AA (Not Included) Gross Weight: Approx. 225g/7.9oz Application: PH and Chlorine Gas Detection for Swimming Pool and SPA Pool Water The Recommended Chlorine Level for Swimming Pools and SPAs is 1.2 to 1.7 ppm Recommended PH for Swimming Pools and Spas is 7.2 to 7.8 Package List： 1 x Swimming Pool Water Quality Tester(Battery Not Included) 1 x Manual 1 x Gauze Paper