-40%
20 Door & Window Alarm Contact Switch Normally Closed, Surface Mount--White
20 Door & Window Alarm Contact Switch Normally Closed, Surface Mount--White
20 Door & Window Alarm Contact Switch Normally Closed, Surface Mount--White
20 Door & Window Alarm Contact Switch Normally Closed, Surface Mount--White

20 Door & Window Alarm Contact Switch Normally Closed, Surface Mount--White

$ 36.27

Availability: 100 in stock
  • Model: Surface Mount Contact (Wireless)
  • All returns accepted: Returns Accepted
  • Return shipping will be paid by: Seller
  • Item must be returned within: 30 Days
  • Connectivity: Wireless
  • Restocking Fee: No
  • Type: Door & Window Sensor
  • Features: Mechanical
  • Location: Indoor/Outdoor
  • MPN: SDCWAU-20
  • Brand: AuthorizID
  • Condition: New
  • Refund will be given as: Money Back

    Description

    These are the door contact sensors that are in use with any and all commercial or residential card access systems as well as all security burglar alarm system. The door position switches operate with a built an internal magnetic reed switch that opens when the opposing magnet comes within ¾” of the door sensor. Hence when the door opens beyond the ¾” point the door position switch will switch from a open signal to an closed signal. When this happens the access control system or alarm system will sense the change in continuity and will know that the door or window has been opened. When the door or window shuts, the door sensor will notify your security system that the opening has been closed.
    20 White ABS Surface Mount Normally Closed Door Contact Switch
    .2 Amp Maximum Switch Current
    Will make Sense Door Closer at Roughly ¾” or 15mm
    This Contact Works with Any Access Control or Burglar Alarm System Available
    NORMALLY CLOSED: When the door or window is open, the contact will give an open signal and when the door is closed the contact will give a closed (circuit) signal.