Fangrui Product Details 1. Made Of Plastic Material, With High Impact Resistance, Heat Resistance, Low Temperature Resistance, Nice Chemical Resistance Properties. 2. High Accuracy, Support The Detection Of The Humidity, Light And Ambient Temperature In The Soil Of Green Plants, Lawns, Etc. 3. Wifi Connection, Connect To Ios Or Android Tuya App . 4. Cellphone App Control, Accurate Readings, So That Users Know The Specific Situation Of The Soil At Any Time, To Solve The Traditional Temperature And Humidity Is Not Easy To Read The Problem. 5. Mobilephone App Displays The Soil Temperature And Humidity In The Detection, And Low Temperature Alarm When Low -15c(5f). 6. Multifunctional Design, Statistical Temperature And Humidity Function. 7. Wide Range Of Applications, Suitable For Gardens, Lawns, Vegetable Fields, Farms, Potted Plants, Vegetable Greenhouses, Etc. Waterproofing: Ip67 Working Frequency: 2.4ghz Transmission Distance: 150m Temperature Range: -20-85c(-4f-185f) Humidity Range: 0-rh Light Intensity: 0-100,000