3wire magnetic door/gate contact — selectable NO and NC outputs for flexible installation 3 wires (NO & NC): Provides both normally open (NO) and normally closed (NC) contacts so you can choose the wiring mode that matches your alarm panel or controller. Over 40 mm operation distance: Large activation gap (over 40 mm) reduces the need for ultraprecise alignment and works with thicker frames or uneven mounts. Includes adjustable Lbracket: Supplied Lshaped bracket lets you position and secure the magnet easily for fast, accurate installation on doors, shutters, and gates. Heavyduty metal housing: strength metal case protects the contact assembly and improves durability in daily use. Designed for home burglar alarm systems: A reliable security contact ideal as a component in residential alarm setups. Key benefits — why this contact matters Flexible integration: Choose NO or NC wiring to match most alarm panels, garage door controllers, and access systems without extra adapters. Easier installation and fewer adjustments: The large 40 mm operation distance plus the adjustable bracket reduce installation time and means the sensor still works if the door or frame shifts slightly over time. Built for longevity: The metal housing protects the internal switch from knocks and wear, helping maintain dependable operation as part of your security system. Simple compatibility: Suitable for common door and gate types so you can use the same contact across multiple entry points. Typical applications Garage doors: Mount on the door and frame to report open/closed status to the garage controller or the home alarm panel. Roller shutters: Use on roller shutter edges to detect position and trigger alarms or automation when the shutter moves. Gates and access points: Install on metal or wooden gates to monitor entry/exit, integrate with a gate operator, or feed a burglar alarm system. What you get 3wire contact with selectable NO/NC functionality Adjustable L mounting bracket for the magnet Robust metal housing suitable for residential security installations Compatibility and installation notes Works with most standard home burglar alarm panels, garage door and roller shutter controllers, and gate systems that accept NO or NC contacts. Designed for installations where a larger activation gap (over 40 mm) is beneficial. This contact provides a practical, durable, and flexible solution for monitoring doors, shutters, and gates as part of a home security or accesscontrol system.