Feature 1WATER QUALITY MONITORING: Intelligent pool cleaning lonizer can monitor the PH value, ORP value and salt level of swimming pool water in real time to ensure clean and healthy swimming water. 2SOLAR POWER SUPPLY: Powered by solar battery, no need for power supply and battery replacement, eco friendly and power saving. 3FLOATING DESIGN: The special floating design allows the instrument to float on the surface of the water, making it easy to monitor water quality at various locations. 4SIMPLE OPERATION: No need for complex settings, you can view the water quality data at any time through the cell phone APP, simple and convenient. 5PRACTICAL FUNCTIONS: In addition to monitoring the PH ORP salt of water quality, it can also detect the chlorine concentration.Item Type: Pool Cleaning IonizerMaterial: ABSWeight: 835 - 880 g or 29.5 - 31 oz(approx.)Product Size: Approx. 21x16.5cm or 8.3x6.5inMeasurement RangePH: 0.0-14.0 PHCL: 0.0-4.0 mg or LORP: -999-and999mVSALT: 0-999ppm 1000-9990 ppmEC: 0-2000S or cm 2000-9990S or cm 10.01-19.99mS or cmTDS: 0-999ppm 1000-9990 ppmTemperature: 0.0-50.0 Degrees Celsius 32.0-122.0 Degrees FahrenheitThe phone exits the APP and automatically enters the standby mode, open the APP, the device works normally for measurement.Charging Mode: Solar Charging (Without Power Storage Function) .wang-edit-text{ font-family:'Arial' !important } .wang-edit-text table { border-top: 1px solid 000 border-left: 1px solid 000 } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid 000 border-right: 1px solid 000 padding: 3px 5px } .wang-edit-text table th { text-align: center }Package List1 x PoolCleaningIonizer1 x Instruction Manual3 xCalibration Solution1 xAccessoryNoteMust be paired with a smart gateway to work.