[Tuya Smart WIFI Controller]: Download "Tuya" APP, WiFi Connection/Intelligent Real-time Data transmission, you can view the current data, historical data, abnormal high and low data alarms on the mobile phone, etc. Connect to your phone in seconds and you can get PH ORP EC PPM Humidity and TEMP readings. It makes testing more accurate and convenient. [Easy Operation]: Can PH ORP EC PPM Humidity and Temperature at the same time, Immersed the electrode of the tester in water and waited for a few seconds to get the data on the LCD screen. There is no need to repeatedly measure one by one like other Test paper and water quality pens. The operation is simpler and more convenient. Test temperature in C/F (switchable units). Backlight is supported for easy reading even in dim lighting. [APP real-time monitoring]: Record data for a long time, easy to compare and analyze and formulate solutions. [High-precision replaceable Electrode, wide application range]: It is applicable to the PH ORP EC PPM Humidity&Temperature test of fish tank, mariculture, drinking water, water source, soilless culture, aquarium, hydroponics, laboratory, spa, environment, swimming pool and water treatment system. APP Name: Tuya PH: 0.01-14.00pH ORP: -1200mV ~+1200mV EC: 0.00-19.00mS/cm,20.1-200.0mS/cm TDS: 0-9990ppm,10.1-100ppt :0.1-199.9CF Humidty: 01%RH-99%RH TEMP:0.1C-80.0, 32.1F-176F Note: Please check as much as possible to make sure the item is what you need. Tips: The product may be updated constantly ,Due To Different Batches, The Actual Product May Have Slight Differences Or Color Differences, Which Does Not Affect Use Plug Type:US Plug,it applies to Canada, India,Mexico, Thailand, the , the Philippines,Taiwan and so on. Voltage: AC110V Color: As Shown Material: plastic Package Contents: 1 x Tuya WiFi 7 In1 Water Quality Tester 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.