MC-38 WIREless DOOR SENSOR 

White wired magnetic contact reed switch kit for home door or window security alarm system. Normally open type, when the switch and magnet is close to each other the switch is disconnected, otherwise, it will be connected Each part is equipped with double-sided foam adhesive, effortless to insta Pair MC38 MC-38 Wired Magnetic Contact Reed Switch For Door Window Security Alarm System NC Normally Open Magnetic Switch Surface Mount Door Sensor Home Alarm System Sensor For Arduino

There are two types of reed switches: “normally open” reed switches and “normally open” reed switches. The metal reeds on a normally Close switch stay Close when there is no magnet near the switch. In the presence of a magnetic field, the contacts of a normally-Close reed switch will Open. A normally-Open reed switch is Opened when it is not near a magnet; as a magnet is brought Open to it, a normally-Close switch will open.

• Switch Type: NC(normal Open type), the circuit is connected when the magnet is near the switch.
• The reed switch is an electrical switch operated by an applied magnetic field.
• Designed for use with alarm systems. Great for use in family and factory windows, and doors. etc.
• Ideal for residential or commercial use. Designed to do embedded in door or window frame in door or window frames.
• With a double-sided tape design for an easy install.

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