1. CL2 CHLORINE TESTER: - Easily measure chlorine levels by turning the knob to the left towards CL2 until aligned with the letter C. - Prepare a 1.5 PPM standard solution of residual chlorine and immerse the metal rod in the measuring cup up to the black line. - Wait for the pointer to stabilize before taking your reading. - Ensure to clean the metal rod after each use to maintain accuracy. 2. PH TESTER: - Keep the metal rod clean by gently sanding it with fine sandpaper and wiping with a clean cloth or paper towel. - Rotate the knob towards PH until you hear a click, indicating it's set for measurement. - Submerge the metal rod in the pH solution to be tested and wait for the pointer to stop moving before recording the result. - Clean the rod post-use to ensure longevity and precision. 3. APPLICATION: - This digital tester is perfect for monitoring pH and chlorine (Cl2) levels in swimming pools, spas, and other water sources, ensuring safe and healthy water conditions. 4. RANGE: - Quickly assess chlorine and pH levels with this effective water quality tester. - Recommended chlorine levels for swimming pools and spas are between 1.2 to 1.7 ppm, while optimal pH levels range from 7.2 to 7.8, helping you maintain ideal water quality. Use Cases: - Regularly check your pool's chlorine levels to ensure a safe swimming environment for your family. - Test pH levels in spa water to enhance comfort and skin health during relaxation sessions. - Conduct water quality assessments for various water sources, ensuring compliance with health standards.