Tuya Smart Soil Sensor Solar Power Temperature Moisture Soil Soil Sensor:Solar powered temperature and moisture detection Soil quality(EC) detection Smart scene linkage. Accurate Detection of Soil Temperature and Moisture:Keeping track of the flower's water needs and temperature status. Solar and Rechargeable Battery Powered:High conversion solar panel, high-power faster charge,Longer-lasting power supply with 3 x 1.2V Ni- battery Ni- Rechargeable Battery:3 x AA(1.2V) Standby Current:86uA Wireless Standard:IEEE 802.11b or g Wireless Frequency:2.4GHZ Wireless Distance:45M Bluetooth Version:Bluetooth 5.0 Waterproof Level:IP66 Temperature Detection Range:-10��C-60��C(14�H-140�H) Temperature Detection Accuracy:0.5��C(Adjustable) Humidity Detection Range:0-100 percent RH(non-condensing) Humidity Detection Accuracy:1 percent RH (Adjustable) Conductivity Accuracy:3 percent 0.01ms or cm Maximum Range:20ms or cm Temp.and .Detection Interval:5min (Adjustable) Operating Temperature:-10��-60��(14�H-140�H) Operating Humidity:0-100 percent RH(Non-condensing) Colour:As Shown Material:Plastic Package Contents: 1 x Tuya Smart Soil Sensor 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.