MCM Electronics

Normally Open Door Contacts



    Normally Open Door Contacts

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    82-13870 - Alarm Switch Screw Terminals N.O. Contact/Mag; 3/4" Gap

    For added protection around your home, add a pair of Surface Mount Magnetic Contact Switches to almost any security system. The switch is ideal for any normally open location and will send an alert signal to your security system when it is no longer in a normally open state.

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    82-030 - Overhead Garage Door Contact

    These garage door contacts for closed circuits are used for systems that expect a closed circuit when the magnet and sensor are together. When the magnet and sensor separate, the circuit opens. Switch contacts, which are normally open, close when the door is in the closed position.

    Discontinued(View Substitutes)


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