Accurate and fast results: The swimming pool chlorine residual detector and PH water quality detector provides quick and accurate measurements of both pH and chlorine residual levels, helping ensure your pool or spa remains safe for swimmers. Maintains proper balance: This water quality testing device helps you maintain the correct balance of pH and chlorine levels in your pool or spa without guesswork or chemical additives. Easy to use: With its electric testing system, this detector is easy to use and suitable for routine monitoring of pH and chlorine residual levels in swimming pools, spas, and other water sources. Health protection: Regular checks of pH and chlorine levels are essential to maintain a healthy swimming environment and help prevent ear and skin infections and diarrhea caused by bacterial growth. Use scenarios: Home pool or spa routine checks for safety and comfort. Public pools, gyms, or community facilities to ensure safe water for patrons. Maintenance of other water sources such as hot tubs or rental properties.