The Magnetic Switch connects to the Bellman Visit Telephone/Multipurpose Transmitter for notification of a door or window being opened. When the magnetic switch is activated, the transmitter is activated and the user can be alerted through any of the Bellman Visit receivers.

3.5mm mono jack plug. 0.5 meter cable length (1.6 feet).

What else do I need to make this work?

In order to be notified, you will need to purchase the Bellman Visit Telephone/Multipurpose Transmitter that connects to the Magnetic Switch. You will also need to purchase a receiver that lets you know when the signaler or transmitter is activated (see Accessories box).