Practical safety: Chlorine content recommended in swimming pools and spas: The pH value of swimming pools and spas is 1.2 to 1.7 ppm and PH is 7.2 to 7.8ph. The water quality digital monitor is an indispensable tool for quickly and accurately reading ph and chlorine, which can that your swimming pool / spa water is safe, comfortable and non-. Application widely: This PH meter is very suitable for various tasks, such as swimming pool, tap water, home brewing, laboratory testing, aquarium maintenance and so on. Electric tester for testing pH and chlorine (Cl2) levels in water. It is used to routinely monitor the pH and chlorine content of swimming pools, spas and different water sources. Miniature convenient: Hand-held pen type and compact suitcase can be put in a pocket or bag, and can be carried anywhere. Because the pH meter has built-in (ATC) automatic temperature compensation, it no longer needs to of the temperature of the test liquid, so it can accurately determine the pH of the sample at any temperature within the range of 0 ° C-80 ° C (32 ° F-176 ° F), very convenient. Fast accurate: The meter can quickly and accurately obtain results without using color charts or messy test strips. It has a resolution of 0.01, an accuracy of 0.05, can be fully measured in the pH range of 0 to 14, and the pH meter has been calibrated at the factory. Chlorine content in the safe measurement range: 1.2-1.7 ppm, pH in the safe measurement range: 7.2-7.8. Test pH: The recommended chlorine content for swimming pool water or water is 7.2 to 7.8. A) When the probe is in the water, turn the turntable to pH until it clicks. (The battery must be removed when reading the pH). B) Wait until the pointer stops oscillating and reads the pH. C) Gently dry the test strip, insert it into the slot next to the tester and store it., Weight: 0.4629707502 pounds, Manufacturer: Cpolebev