Add a security sensor to your roll or tilting garage door with this reed switch sensor from PMD Way. Made from a strong alloy aluminium, you can mount the magnet on the door and the sensor at the base of the door on the floor. Using the options menu you can select between NO (normally open), NC (normally closed) or a model that can do both. Free delivery, worldwide. Specifications: Operating voltage up to 100V DC Operating current up to 500mA Sensor distance 50~70mm Includes bracket as shown in images. Dimensions: Don't forget to check out our full range of switches if this doesn't meet your needs. And as always, all orders receive free delivery. And remember ... if you: can't find what you need not sure what to order want a bulk deal need technical support or just want to have a talk ... Please email us via [email protected]. To keep up to date with new products, news, tutorials and more - we're on x, Facebook, Instagram, threads, reddit, and instructables.