[Accurate rain measurement]: Zigbee wireless rainfall sensor has the characteristics of absorbing and evaporating water with soil, which can accurately measure rainfall, automatically adjust irrigation system and save water. [Rainfall sensor adjustment setting]: After receiving the set rainfall range, the automatic sprinkler system be automatically suspended. Adjust the setting by rotating the upper end of the rainfall sensor, and the effective adjustment range is 5 mm-20 mm. [Intelligent linkage]: It is linked with Zigbee time-controlled irrigation intelligently and needs to be used with Zigbee BT gateway. [ Cyclic timing irrigation ]: In , Zigbee wireless rainfall sensor and Zigbee remote controller operate according to the set program. On , the Zigbee wireless rainfall sensor receives the information of rain, and the Zigbee remote controller is automatically turned off (forced on and off). After rain, the rainfall sensor can automatically adjust according to the soil transpiration moisture to the accuracy of irrigation. Name: ZigBee wireless rainfall sensor Working voltage: 3V Static power consumption: 10uA Color: Grey & Green Material: plastic Package Contents: 1 x Wireless Rain Sensor(without 2 x AAA batteries) 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.