Fast Accuracy: The meter can get results quickly and accurately without using messy swatches or test strips. It has a resolution of 0.01, an accuracy of 0.05, can be fully measured in the pH range of 0-14. Ideal for simple operations to test PH and CL2 of the water, no more chemicals or no more guesswork. Large screen displays test result both PH and chlorine level for easy reading. hand and the compact suitcase can be placed in a pocket or bag, and can be carried anywhere. temperature of the test liquid, so it can accurately determine the pH of the sample at any temperature within the range of 0C to 80C (32F to 176F), very practical. Practical safety: Recommended chlorine content in swimming pools and spas: The pH value of swimming pools and spas is 1.2 to 1.7 ppm and the pH is 7.2 to 7.8 ph. The digital water quality monitor is an indispensable tool for quickly and accurately reading ph and chlorine, which can ensure your pool/spa water is safe, comfortable and non-corrosive. > Widely Application: This pH meter is very suitable for various tasks, such as swimming pool, tap water, home brewing, laboratory testing, aquarium maintenance, etc. Electric tester for testing pH and chlorine (Cl2) levels in water. It is used to regularly monitor the pH and chlorine content of swimming pools, spas and various water sources. Specification: Material : plastic Powered by: 1 x AA battery (not included) Recommended for swimming pools and spas: chlorine 1.2-1.7 ppm, pH 7.2-7.8 Features: Essential tool for quick and accurate ph and chlorine readings as chlorine is the most commonly used disinfectant for water. It kills bacteria, algae and microorganisms. Ideal for keeping your pool or spa within safe chlorine and pH ranges, no more chemicals. An electric tester for testing pH and chlorine (Cl2) levels in water for routine monitoring of pH and chlorine levels of swimming pools, spas and different water sources Recommended chlorine level for swimming pool and spa: 1.2-1.7ppm and 7.2-7.8ph/hr for pool and spa pH level. Lightweight and easy to carry, no need of chemical agent and easy maintenance. Keep your pool/spa water safe, comfortable and corrosion-free. Include: 1 x Water Quality Tester