Gufastore 10pcs Surface Mount Alarm 10W 100V 0.5A in Max Magnetic Contact Ideal for Door Window Security

Price: $13.99
(as of Jan 28, 2024 10:26:31 UTC – Details)

10pcs Surface Mount Alarm 10W 100V 0.5A in Max Magnetic Contact ,including 40pcs screws .
NO means Normally Open: when the magnet separate, the circuit is conductive;When the magnet together, the circuit is not conductive,
NC means Normally Closed:When the magnet together, the circuit is conductive; when the magnet separate, the circuit is not conductive.
【Reed Switch】When the contact magnetic is near, the switch is close , current will run through it ; When the contact magnet is away , the switch is open ,no current could run through .
【No External Power Needed】 Connect to wired alarm control panel, GND (Positive) Connect with NC(Negative) ports directly which make signal stability and no trouble for the battery.
10pcs Surface Mount Alarm 10W 100V 0.5A in Max Magnetic Contact ,including 40pcs screws .
【Install Distance】 ：Gap between 2 pieces more than 15mm, less than 25mm.White color make home great and beautiful. Anti-fire ABS material.
【Install Attention】The Magnetic contact CAN NOT connect directly to power, it works with your alarm system,Working current under 12V.