Feature: 1. Made of premium plastic shell, durable and sturdy. 2. Easy to operate, no more chemicals need. 3. A convenient tool to test water pH and chlorine level for swimming pool, spa, aquarium, hydroponics and other water systems. 4. Large screen displays the test result on pH and chlorine level for easy and accurate reading. 5. Light weight and compact, easy to carry. With a hole for convenient hanging. Specification: Item name: Water Quality Tester Main material: ABS Metal Color: White Battery: 1 x AA (Not included) Recommended CL2 level for pools and spas: 1.2-1.7ppm Recommended PH level for pools and spas: 7.2-7.8PH Product size: 170x115x30mm Product weight: 200g. Package List: 1 x Water Quality Tester 1 x User Manual Note: 1.Please read carefully the enclosed instructions before operating the tester. 2.Please don't immerse the probe in any liquid other than pool or spa water. 3.There could be some deviations due to manual measurement or slight color difference owing to photographing condition. Thank you for your understanding.