Magnetic contacts is extensively used for alarm system(panel) to detect state of door/window. It include a reed change half and a magnet half . When door closed, reed change is effected by magnet and switch ON; when door open, reed change is effected by magnet and switch OFF, set off alarm.
【Measurement】Physique dimension(approx.): 50*20*10 50*20*10mm(L*W*H), Cable size: 260mm/10.2″, Motion Distance:20-30mm/0.8″-1.2″, bundle embrace 1 pair.
【Materials】The magnetic change alarm is with zinc alloy housing for higher rust resistance, sturdy and excessive energy.
【Usually open (NO)】Usually Open sort with 2 wires, When the change is separated from the magnet, the circuit is conductive(gentle on); When the change is near the magnet, the circuit is just not conductive(gentle off).
【Utility】This magnetic contact change is often used for metallic door/home windows embrace rolling Door. The door contact can be utilized with an entry management or anti-theft alarm system.
【Be aware】The Magnetic Door Change have to be put in as per the sensing distance. It will possibly solely present a change sign to the transmitter. It will possibly’t instantly load the facility, nor instantly join the lamp.
Wired Door and Window Sensors
Magnetic Reed Switch Wired Surface Mount Normally Open NO Contact Sensor Alarm Magnetic Door Switch with 2 Wires, Zinc Alloy Sliver, MC-52
$9.99