Wired Magnetic Roller Shutter Door NC Type Sensor Detector Contact Pack of 5 Compact, reliable magnetic contacts designed to detect open and closed positions of roller shutters, doors, windows, and similar movable panels. Each unit uses a normally closed (NC) reed switch that opens when the magnet is separated, providing a simple and secure input for wired alarm panels, access controllers, and automation systems. Key benefits Clear detection: NC type reed switch provides a stable closed circuit when the door or shutter is closed and reliably changes state when opened, making it easy to monitor position and trigger events. Simple integration: Standard wired connection fits most alarm control panels and access controllers that accept NC inputs. Works as a direct, lowcomplexity sensor for existing security and automation setups. Pack of 5: Multiple sensors in one pack make it easy to outfit several doors or shutters or to keep spares for maintenance. Compact and unobtrusive: Lowprofile design mounts discreetly on frames and shutters so the sensor does not interfere with normal operation. Low maintenance: Solidstate magnetic contact requires no power to detect position and has no moving parts that require frequent servicing. Features and specifications Function: Normally closed magnetic contact (NC). Opens when magnet and sensor are separated. Connection: Wired contact for direct wiring into control panels or controllers accepting NC inputs. Quantity: Pack of 5 identical sensor contacts. Form factor: Compact sensor and matching magnet designed for mounting on door frame and moving panel. Durability: Designed for repeated switching cycles in daily use. Compatibility and use Compatible with standard wired alarm panels, access control systems, roller shutter controllers, and home automation interfaces that accept NC contacts. Ideal for installations where a reliable, hardwired position signal is required. Typical applications Retail roller shutters: Monitor shutters after hours to trigger alarms or notify a control system when a shutter is opened. Garage and storage doors: Provide a wired dooropen signal for garage controllers, gate systems, or site security panels. Warehouse loading bays and access points: Integrate into access control and automation sequences to confirm door position before allowing equipment movement or disabling automated locks. Installation notes Mount the sensor on the fixed frame and the magnet on the moving panel so they align when closed. Proper alignment ensures reliable switching. Wire the sensor into the NC input of your control panel or controller. Verify wiring polarity and panel settings according to the control panel documentation. Place sensors where they will not be damaged by normal door movement or impact. For exposed outdoor use, protect wiring and mounting surfaces as required by the installation environment. What you receive Five wired magnetic NCtype sensor detector contacts, ready for installation. This pack provides a straightforward, hardwired solution to monitor door and shutter positions, suitable for security, access control, and automation projects that require dependable NC contact inputs.