Perfect water quality testing tool, mainly used for pH and chlorine levels of swimming pools, spas and various water sources.Portable water monitor, using high quality ABS material, durable and wear-resistant, corrosion-resistant.With high measurement accuracy and stable performance, it can quickly read pH and chlorine values for you.It can keep pool or hot spring water within a safe chlorine and pH range.Small size, suitable for outdoor carrying, helps to detect pH and chlorine value of different water sources.Feature:1. Perfect water quality analysis 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 pool or hot spring water within a safe chlorine and pH range.5. Small size, suitable for outdoor carrying, helps to detect pH value and chlorine value of different water sources.Specifications:Condition: 100% Brand NewItem Type: Water TesterMaterial: ABSpH range: 5.5-9.0phCL2 range: 0-3.0ppmBattery: 1 AA 1.5V alkaline battery (battery not included)Uses: swimming pool water quality tester, PH test penRecommended chlorine content for swimming pools and spas: 1.2-1.7 ppmRecommended PH for pool and spa: 7.2-7.8phWeight: approx. 265g/9.3ozProduct size: approx. 180x125mm/7.1x4.9inTest lead: approx. 150x20mm/5.9x0.8inList of packages:1 x water tester (battery not included) 1 x sandpaper 1 x instruction manualNote:1. With the exception of water in swimming pools or spas, the detector is not recommended for immersion in water. Please allow 0-2cm error due to manual measurement. Thank you for your understanding 3. Instructors are notnot calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real standard.