The EV-DW4975 is the industries thinnest supervised door/window contact allowing multitude of applications while hiding the transmitter on a door or window frame. The EV-DW4975 uses a replaceable lithium battery and should last 5 years under normal usage.
Battery included!
Features
- Revolutionary Size (Virtually Disappears)
- Lithium Battery
- Perfect for Vinyl Windows
- Rare Earth Magnet
- Fully Supervised