WESUA 5 Pack Surface Mounted NC Magnetic Door Contacts Switch Sensor for Alarm

Price: $8.99
(as of Feb 21, 2024 13:08:48 UTC – Details)

Magnetic contacts is widely used for alarm system(panel) to detect state of door. It consist of a reed switch part and a magnet part . When door closed, reed switch is effected by magnet and turn ON; when door open, reed switch is effected by magnet and turn OFF, trigger alarm.
Contact type: NC
Material: ABS plastic
Color: white
Pack: 5pairs/bag
Screws installation make it more firm
ABS normally closed door contact switch, alarm when the magnet part away
Application: door / window entry burglar alarm system
NC magnetic contact switch sensor