WESUA Magnetic Switch Alarm Sensor Overhead Garage Door Contacts with L Bracket

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 (normally closed),switch OFF when door is opened Switch part material: alloy zinc L bracket Material : Aluminum Color: silver-grey Pack: 1pairs/bag Operation gap : ≥ 50mm Mounting type : Surface mounting Max. voltage : 28V DC Max. current : 0.2A Max. load : 3W