2sets magnetic reed switch normally open closed nc no door alarm window security magnetic door switch magnetic contact switch reed switch for gps alarm or other device dc 5v 12v 24v light 4 3 out of 5 stars 172.
Magnetic contact door alarms.
Wire contacts to an alarm system to alert when doors or windows are opened.
4 3 out of 5 stars 67.
Ring alarm window and door contact sensor 2 pack 2nd gen item 2221347.
99 list list price 13 98 13.
They help keep buildings and controlled access areas secure.
Gufastore 10pcs surface mount alarm 10w 100v 0 5a in max magnetic contact ideal for door window security.
4 0 out of 5 stars 3 ratings based on 3 reviews current price 22 08 22.
Weij 10 pair rc 33 nc recessed wired security window door contact sensor alarm magnetic reed switch white.
Product title magnetic sensor home door window entry warning alarm.
Magnetic contacts are low current devices that send a signal to an alarm or a supervised monitoring system when an armed door is opened.
Spdt switches connect to an alarm system and to another device such as a motion detector.
You can attach alarm contact sensors to any door or window in your house or apartment and when armed you ll get instant alerts on your phone and tablet whenever they open.
2x magnetic reed switch normally open closed nc no door alarm window security magnetic door switch magnetic contact switch reed switch to dc 5v 12v 24v light black 4 1 out of 5 stars 20 9 99 9.
Free shipping on your first order shipped by amazon.
Ring alarm window and door contact sensor 6 pack 2nd gen item 2366870.
For pricing and availability.
Product title security equipment corp hs dwa2 premium white door or window alarm 2 pack average rating.
For pricing and availability.
Mount the magnet to the door or window and mount the switch to the frame.
Gufastore 10pcs surface mount alarm 10w 100v 0 5a in max magnetic contact ideal for door window security with lead wire and 3m adhesive paper 4 3 out of 5 stars 95 13 99 13.
3 out of 5 stars based on 2 reviews 2 ratings current price 6 99 6.