Magnetic contacts is extensively used for alarm system(panel) to detect state of door/window. It include a reed swap half and a magnet half . When door closed, reed swap is effected by magnet and switch ON; when door open, reed swap is effected by magnet and switch OFF, set off alarm.
【Dimension】Physique measurement(approx.): 32*15*8 32*15*8mm(L*W*H), Cable size: 260mm/10.2″, Motion Distance:20-30mm/0.8″-1.2″, package deal embrace 1 pair.
【Materials】The magnetic swap alarm is with zinc alloy housing for higher rust resistance, sturdy and excessive power.
【Usually open (NO)】Usually Open kind with 2 wires, When the swap is separated from the magnet, the circuit is conductive(gentle on); When the swap is near the magnet, the circuit just isn’t conductive(gentle off).
【Utility】This magnetic contact swap is normally used for metallic door/home windows embrace rolling Door. The door contact can be utilized with an entry management or anti-theft alarm system.
【Notice】The Magnetic Door Swap should be put in as per the sensing distance. It may possibly solely present a swap sign to the transmitter. It may possibly’t straight load the ability, nor straight 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-51
$9.79