Vanishing Wireless Door Window Sensor

The DSC 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-DW
Brand: DSC
Part Number: EV-DW4975

Availability: In stock




It's Sleek, it Blends and it's Effective.

These Vanishing Wireless Door and Window Sensors are a must if you want to increase your security and stay discreet about it at the same time. They work with most DSC wireless alarm systems.

Not to be outdone by their revolutionary size, installation of these wireless window and door sensors is exceptionally easy. Just choose a door or window and mount it with the included double sided tape or screws. Just like that, your home security system gets an upgrade. The lithium battery usually lasts 5 years under normal usage and its rare earth magnet keeps the sensor free from failure.

The beauty is, it's so small and compact that even an experienced burglar can't spot it. Increase your security and keep your home beautiful with DSC's Vanishing Wireless Door/Window Sensor.

DSC EV-DW4975 Features:

  • Revolutionary Size (Virtually Disappears)
  • Lithium Battery
  • Perfect for Vinyl Windows
  • Rare Earth Magnet
  • Fully Supervised

Additional Info

Additional Info

Part Number EV-DW4975
What's in the box (1) Vanishing Wireless Door Window Sensor
Variant N/A


Three out of Five StarsReview by Henry
I purchased 13 of these about 9 years ago for my DSC1616 system in a new home. Battery life has never exceeded one year, tend to false alarm when the battery gets low and after about 5 years a number of units, on the exposed to the sun side of the house yellowed, became brittle and started cracking on battery changes. I've had to resort to taping and gluing the cases together to keep using them. My system came with three WS4945 which have had significantly longer battery life, no false alarms and the cases have remained white and pliable.

I may, over time, replace all of these with the WS4945 units. (Posted on 3/22/2016)

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Frequency 433.92
Operation Temperature -10C-+50C
Normal Battery Life 5 Years Varies with Usage and temperature
Battery Type Panasonic CR2032