Usage Tips: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/g Wireless Frequency:2.4GHZ Wireless Distance:45M Bluetooth Version:Bluetooth 5.0 Waterproof Level:IP66 Temperature Detection Range:-10°C-60°C(14℉-140℉) Temperature Detection Accuracy:0.5°C(Adjustable) Humidity Detection Range:0-100%RH(non-condensing) Humidity Detection Accuracy:1%RH (Adjustable) Conductivity Accuracy:3% 0.01ms/cm Maximum Range:20ms/cm Temp.and .Detection Interval:5min (Adjustable) Operating Temperature:-10℃-60℃(14℉-140℉) Operating Humidity:0-100%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.