1.3 in 1 pool test kit: The pool test paper can test all required parameters of your swimming pool, including pH, total hardness, and chlorine. You can monitor the water quality at any time. Keep damp fingers away: For accurate results, avoid touching the test area with damp fingers. Read in natural light and store the kit in a cool, dry place. Accurate and Scientific: This water quality test kit has focused on test and measurement range for many years, using the most reliable test paper in our products to ensure the accuracy of testing water quality. EASY OPERATION: Simple operation. Collect a glass of pool water sample, immerse the pool test strip for 2 seconds, and wait 60 seconds to read the pool test strip with the colour card. Use scenarios: - Home pool maintenance: quick checks of pH, hardness, and chlorine to keep the water safe for daily use. - Small commercial facilities: regular on-site monitoring for hotels, gyms, or apartment complex pools. - Temporary or portable pools: on-site water quality checks for vacations, events, or portable setups.