Ideal for switching Funklsteckdosen

I use the "434MHz RF Link Transmitter" to switch Funksteckdosen Elro () with the Raspberry Pi. The combination works well and reliably, the range is 20m away of the house that is also a floor.

Who wants to know how it works, just the internet for "PowerPi: Raspberry Pi house control" locate and select the link that points to the German side Raspberrypiguide.de (I'd like to publish the link here, but Amazon removes references to external pages). Another tip to: It pays to read the discussions on the side.