9 IN 1 POOL TEST KIT: The most comprehensive pool test suite on the market. Test all necessary parameters for your swimming pool at 1 time, such as pH, Total Chlorine, Free Chlorine, Bromine, Alkalinity, Total Hardness, Cyanuric Acid, Salt and Copper. Monitor the water quality at any time you want.

ACCURATE AND FAST TESTING: Just soak in water for 1 seconds; Then take it out,no need to shake excess water off and hold the test strip horizontally for 15 seconds; Compare with the color chart on the bottle to obtain clear and accurate water quality results.

HIGH ACCURACY POOL TESTING STRIPS: High-quality fiber paper and no-bleeding pads selected after repeated trials by R&D personnel. No need to shake off excess water and follow the instructions easily, you will to get the accurate results.

AFFORDABLE 140 STRIPS: This water chemical testing kit contains 140 test strips. Enough balanced for your swimming pool, hot tub, spa and other water testing. At least testing twice a week is recommended to keep your pool sparkling clean and safe.

TIPS FOR ACCURATE RESULTS: Keep wet fingers away from the strips. Read under natural daylight for best results. Store in a cool dry place. The expiration is 3 years from manufacture. Once opened, use up in 150 days.