$166

Description

3 White ABS Normally Closed Miniature Door Contact Switch 5/8 by 3/8 with screw terminal block to terminate alarm system wires.
.2 Amp Maximum Switch Current.
Will Sense Door Closer at Roughly 1/2” or 10mm.
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..

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 closes when the sing 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 closed signal to an open 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. 2 screw terminal ports to wire up alarm system wires. No need for wire crimping. Very easy to install.

Reviews

3 White Recessed Screw Terminal Block Door Contacts NC Alarm Door Window Sensors with Magnetic Reed Switch. These 3/8” Door Contact Position switches (DCS) Work with All Burglar Alarm Systems

Fast Delivery to Hong Kong

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