FOCMKEAS 5PCS Recessed Wired Security Window Door Contact Sensor, Normally Closed NC, Door Alarm Magnetic Reed Switch with 2 Wire, ABS White, RC-35

Description

• SizeBody size(approx.): 9*33mm/0.35"*1.3"(D*L),Cable length: 260mm/10.2", Action Distance:15-25mm/0.6"-1", package include 5 pairs.
• MaterialThe Magnetic Switch is made of flame-retardant ABS shell material, resistant to high temperature and not easy to deform.
• Normally Closed (NC)Normally closed type with 2 wires. When the magnet together, the circuit is conductive( light on ); the circuit is not conductive ( light off ) if the magnet separates.
• ApplicationThese are the door contact sensors that are in use with any and all commercial or residential card access systems as well as all security burglar alarm system. The door contact can be used with an access control or anti-theft alarm system.
• NoteThe Magnetic Door Switch must be installed as per the sensing distance. It can only provide a switch signal to the transmitter. It can't directly load the power, nor directly connect the lamp.

Magnetic contacts is widely used for alarm system(panel) to detect state of door/window. 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.

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