Bosch RFDW-SM RADION Wireless Surface Mount Door Contact

The Bosch RFDW-SM is the RADION surface-mount contact: a wireless magnetic reed switch that tells the panel a door or window has opened, with no cable to run and a battery that lasts years.

What you get

• 1 RFDW-SM wireless surface-mount contact, the version for Europe, Africa and Australia

You'll also need

• A RADION receiver on the alarm panel, such as the RFRC-STR2 or the B810
• The magnet assembly that pairs with it, fitted to the moving part of the door or window
• An AAA lithium battery when the time comes to replace it
• The RFAC-DW-10 spacers where the frame and the moving part do not sit level