CASAcontrol
Door & window alarm for radio bell series KFS-150, battery operated

Perfect For your KFS-150 series radio bell: install the alarm on the window or door. And pair it with your doorbell. You already have an alarm in case of unintentional opening of window or door.

One detector for all your doorbells: You can couple each detector to as many wireless bells as you like. If, for example, you have one bell each in the entrance area and in the bedroom, living room and study, one detector can trigger all bells simultaneously if desired!

Easy wireless installation: Stick or screw the detector to the door or window frame. Attach the magnetic trigger directly next to it on the window or door - thanks to battery operation, no cables to lay!