Brand New Visonic MCT-340 SMA 2.4 GHz Wireless Contact  for Xfinity




MCT-340 is a fully supervised, wireless Door/Window sensor. Beautifully slim, it blends in to the decor of your home.

The sensor includes a built-in reed switch and magnet to detect the opening and closing of a door or window. Powered by a CR2032 coin cell, it also includes a tamper switch which is activated when the cover is removed.


  • Very small, thin form factor able to blend into the decor of most installations
  • Easy installation using high-strength 3M mounting tape (included)
  • Wide Gap performance able to be installed in tough situations where magnet gap is over 1"
  • Battery level data routinely transmitted. Low battery condition also transmitted.
  • Environmental Temperature measurement
  • Tamper alert is reported when a tamper event occurs and in any subsequent message, until the tamper switch is restored.
  • Battery Life estimated at 3 years (for typical use).


  • 3V Lithium battery, type CR2032
  • 66 x 25 x 10 mm (2-9/16 x 1 x 6/16 in.)
  • 0c to 55c (32F to 131F)