xin-sheng Wired Metal Roller Shutter Door Magnetic Contact Waterproof Switch Alarm OC-55 Door Sensor for Home Alarm System
$12.00
Price: $12.00
(as of Jan 28, 2024 08:34:22 UTC – Details)
Dimension: 106*16*16mm; alarm triggering gap: 30-50mm; 10W,0.5A; it is wired, normally closed;
When door open.it output NO COM
When door close,it output NC COM
This is a set of wired magnetic detecting switch used to protect doors and windows for the most part
Easy to install and use. A good replacement for the old contacts. Simple to install no hassles
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