The DSC EV-DW4975 is so incredibly thin it almost vanishes when installed. This inconspicuous wireless door/window sensor is compatible with DSC 433 mhz receivers. The EV-DW4975 is powered by a replaceable lithium battery good for 5-8 years under normal use. DSC EVDW4975 Vanishing Wireless Door/Window Transmitter features: - Wafer thin
- Mounts via double sided tape
- generous 5/8" max magnet gap
- Compatible with DSC 433 mhz receivers
- CR2032 lithium battery lasts 5-8 years under normal use
- Dimensions: 2 1/4” x 1” x 3/16” (57 mm x 25.4 mm x 4.8 mm)
- Colour: White
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