Features:
Exquisite workmanship, high efficiency, stable working performance.
Premium material ensures maximum strength and durability for long lasting usage.
Normally open type: When the magnet and the reed switch are together, they are in the off state (NO).
Normally closed type: When the magnet and the reed switch are together, they are in the on state (NC).
Used for Non-metal door/window protection External power supply, connect to wired or wireless alarm control panel.
Magnetic Switch only, other accessories demo in the picture are not included!
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