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Security Alarm Reed Switch - Double Throw

$6.90
You have both types of contacts on the one unit, so you will always have the correct one!
Normally Open (N.O.) and Normally Closed (N.C.) per pair.
 

Contact operation:

Contacts are closed cicuit when the magnet is alongside the switch. For alarm installation this is denoted as the "normal" state as the door/window is secure and the alarm is armed.

Product Dimensions
Width 55mm
Height 12.5mm
Depth 13mm
Dimension details Dimensions identical on switch and magnet
Operating Temperature
Operating Temperature -40°C
Product Mounting
Overall Screw Spacing (H) 44.5mm
Mounting Method Surface
Attachment / Securing Method Screw Down,Self Adhesive Tape/Pad