[Precise Rainfall Measurement]: The Zigbee wireless rain sensor has the characteristics of absorbing and transpiring water in accordance with the soil, which can accurately measure the rainfall and automatically adjust the irrigation system to save water. [Rain Sensor Adjustment Setting]: After receiving the set rainfall ranges, the sprinkler system automatically suspended. By rotating the upper end of the rain sensor to adjust the settings, the effective adjustment is 5mm-20mm. [Intelligent Linkage]: Intelligent linkage with the Zigbee time-controlled irrigation, and needs to be used with Zigbee BT gateways. [Cyclic Timing Irrigation]: In sunny weather, the Zigbee wireless rain sensor and Zigbee remote controller perform according to the set program. On , the Zigbee wireless rain sensor receives information of rain, and the Zigbee remote controller is automatically turned off (forcibly turned on is also off). After heavy rain, the rain sensor can automatically adjust according to the transpiration moisture of the soil to the accuracy of irrigation. [Nice Quality Spraying Nozzle]: Adopting the indentation process makes the metal more solid, and all-around wrapping is used for higher sealing. Adopting wrap-around plastics processing technology, seamless fusion, large aperture, large water overflow, and nice atomization effect. A sealing gasket copper connector and aluminum plastics tube in the middle of the gasket is added, used to isolate the metal, prevents aluminum and copper contact oxidation, and extend the service lifespan. [Bendable Design]: Wide-angle spraying nozzle, fine water mist, left and right rotation to adjust the flowrate size, 360 can be arbitrarily bent and shaped to accurately locate the watering position, multi-scenario applicable to meet your multiple watering needs. Name: ZigBee WirelessRain Sensor Battery: 2 * AAA battery (not included) Working voltage: 3V Quiescent dissipation: 10uA Colour:Gray Material:plastic Package Contents: 1 set of wireless rain 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.