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- batteryNi- Rechargeable Battery:3 x AA(1.2V)Standby Current:86uAWireless Standard:IEEE 802.11b/gWireless Frequency:2.4GHZWireless Distance:45MBluetooth Version:Bluetooth 5.0Waterproof Level:IP66Temperature Detection Range:-10C-60C(14-140)Temperature Detection Accuracy:0.5C(Adjustable)Humidity Detection Range:0-100%RH(non-condensing)Humidity Detection Accuracy:1%RH (Adjustable)Conductivity Accuracy:3% 0.01ms/cmMaximum Range:20ms/cmTemp.and .Detection Interval:5min (Adjustable)Operating Temperature:-10-60(14-140)Operating Humidity:0-100%RH(Non-condensing)Colour:As ShownMaterial:PlasticPackage Contents:1 x Tuya Smart Soil SensorOnly 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.