Product packaging: contains the components required for installation, as well as the product manual Seco-Larm SM-226L-3Q Overhead Door Magnetic Contacts Garage Door Sensor Overhead Mount Door Switch Door Contacts Magnetic Contacts Bsd3016 Adjustable Bracket Security Switch The magnetic switch design is reliable and accurate - when the door opens and breaks the magnetic connection, it triggers the alarm system immediately. The adjustable bracket makes installation straightforward and allows for perfect alignment between the two contact pieces Application scenario: Large garage doors and gates in industrial and residential areas, withstand greater pressure and are not easily damaged It is an overhead door sensor in a durable metal housing. This Hardwired Magnetic Contact is intended to be used with a garage door or overhead door type Easy installation: This door sensor switch has an adjustable stand for easy alignment and is suitable for most garage installation requirements.
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