Feature: 1. Perfect water quality testing tool, mainly used for pH and chlorine levels of swimming pools, spas and various water sources. 2. Portable water monitor, using high-quality ABS material, durable and wear-resistant, corrosion-resistant. 3. With high measurement accuracy and stable performance, it can quickly read PH and chlorine values for you. 4. It can keep swimming pool or hot spring water within safe chlorine and pH range. 5. Small size, suitable for outdoor carrying, help to detect the pH value and chlorine value of different water sources. Specification: Condition: 100% Brand NewItem Type: Water Tester Material: ABS PH Range: 5.5-9.0ph CL2 Range: 0-3.0ppm Battery: 1 x AA 1.5V Alkaline Battery (Battery Not Included) Uses: Swimming Pool Water Quality Tester, PH Test Pen Recommended Chlorine Content for Swimming Pools and Spas: 1.2-1.7ppm Recommended PH for Swimming Pool and Spa: 7.2-7.8ph Weight: Approx. 265g / 9.3oz Product Size: Approx. 180x125mm / 7.1x4.9in Test Lead: Approx. 150x20mm / 5.9x0.8in . Package List: 1 x Water Tester (Battery Not Included)1 x Sandpaper1 x Instruction Manual Note: 1. Except for water in swimming pools or spas, the detector is not recommended for immersion in water.2. Please allow 0-2 cm error due to manual measurement. Thanks for your understanding.3. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.