Usage Tips:COMPREHENSIVE TESTING SOLUTION: Each 5-in-1 water test kit provides a simple, fast way to measure the pH and free chlorine levels of your pools and spas, ensuring your water is always safe and enjoyable. PROFESSIONAL-GRADE ACCURACY: Get precise results with a test kit that features color-coded reagents and easy-to-match color standards designed for professional reliability and straightforward testing. INSTANT & VERSATILE TESTING: Easily test chlorination and salt water systems and get accurate, reliable results in seconds for more efficient pool or spa maintenance. EXPANDED TESTING CAPABILITIES: This kit provides enough material for over 100 individual tests, ensuring you maintain optimal water quality throughout the season or year, maximizing your investment and pool safety. Note: Installation guide not included, Please check as much as possible to make sure the item is what you need. Colour: AS Shown Material: Plastic Package Contents: 1 x 5-Way Test Kit Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.