VISSQH 10pcs N/C Recessed Wired Security Window Door Contact Sensor Alarm Magnetic Reed Switch White，Normally Closed Magnetic Switch，Reed Alarm Switch

• ★Product Name: Magnetic Door Switch ;Model: MC-38;Package Content: 20 x Magnetic Door Switch, Some Install Parts
• ★Contact Type: NC (Normally Closed) ;Actuation Distance: 18mm ± 6mm;
• ★Max. Current: 0.5A ;Max. Power: 10W; Working Voltage: DC0-100V
• ★Each Size(Approx): 27 x 14 x 7.8mm / 1.06-inch x 0.55-inch x 0.31-inch (L*W*H) ;Mounting Hole Diameter: 4mm/0.16-inch
• ★Cable Length(Each): 25cm / 10.24-inch Material: ABS (Housing) Wire

1.Self-Adhesive Mount, Screw Surface Mount contact, ABS Housing. Long wire lead that can side mounted. 2.Switch Type: NC means Normally Closed:When the magnet together, the circuit is conductive( light on ); when the magnet separate, the circuit is not conductive ( light off ). 3.Work as an anti-theft alarm, ideal for wood door and window. NC: when the magnet is near, the circuit is on; when the magnet moves away and the circuit is Off. NO: When the magnet is near, the circuit is off, when the magnet moves away and the circuit is ON.