Sun Sensor: When the sun comes out or goes down, sensor open or close your awning automatically, it can protect your awnng from damage easily Sustainable : It's wireless, so you don't have to worry about your sensor interrupting the detection of wind and sun frequently so that it is not to adjust your awning in time Wind Sensor: It operate your awning in time when it detects the strong wind, so you don't have to worry about your sensor being eroded by the rain or wind State of Assembly:Ready-to-Go Product name:Solar Energy Rain Sensor (The product appearance and printed words depending on the batch, but this does not affect use) Color: As shown Material: plastic Package Contents: 1 x Solar Energy 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.