433MHz wireless relay cover

This thing was made with Tinkercad. Edit it online https://www.tinkercad.com/things/7BiP8KIEzVZ

For the 433Mhz remote control relays from eBay. Circuit board measures 30mm x 35mm.

http://www.ebay.co.uk/itm/-/302087209906?roken=cUgayN

To control these from a Raspberry Pi see http://www.securipi.co.uk/remote-433-receivers.pdf