Door Window NO/NC Recessed Security Contact Sensor Alarm Magnetic Reed Switch

NO NC type designed for use with alarm systems. Great for use in family and factory window, door. etc.
Switch Type: NC(normal close type), the circuit is closed normally, and, that if a magnet comes near it, the circuit opens.
Switch Type: NO(normal open type), the circuit is open normally, and, that if a magnet comes near it, the circuit closed.

• Size: 23 x 23mm / 0.9" x 0.9"(H*D); Product Name: Door Magnetic Reed Switch
• Color: Brown; Material: Plastic
• Working Voltage: DC 100V
• Cable Length(Each): 36cm/14"