Do you want to automatically retract an awning in the rain? Should a roof window close by itself during precipitation? Here is the solution! The rain sensor RS 12 reacts to rain, snow, and hail. With the control electronics, you can retract sun protection or awnings during precipitation, close roof windows, or simply receive notifications about the precipitation. A heating element prevents freezing or condensation and ensures operational reliability. The rain sensor is connected to the sensor input of the control electronics via the open-collector output. The included mounting bracket allows for flexible installation on a flat roof, sloped roof, or on the house wall.