NC Type Wired Magnetic Alarm Contact Sensor Detector for Roller Shutter Door Overview This NC type wired magnetic contact sensor detects roller shutter door open and close events and connects directly to alarm control panels that accept normally closed inputs. It provides a straightforward, lowcomplexity method to monitor doors and trigger alarms or automation systems when the contact is broken. Why customers need this product Prevent unauthorized access by detecting when a roller shutter door is opened. Integrate door status reporting into existing wired alarm systems using a simple, reliable magnetic contact. Reduce false alarms and maintenance by using a mechanical reedstyle contact with proven longterm reliability. Key benefits Reliable NC operation: Designed as a normally closed contact that opens when the magnet separates from the sensor, providing a clear trigger signal to alarm panels and monitoring equipment. Simple wired integration: Standard wired terminals allow direct connection to most alarm control panels and monitoring devices that support NC contacts. Compact, unobtrusive form: Lowprofile, surfacemounted design fits on roller shutter boxes, frames, and door guides with minimal visual impact. Robust and low maintenance: Mechanical magnetic detection minimizes electronic complexity and requires little ongoing adjustment. Flexible compatibility: Works with roller shutters, garage doors, rolling grilles, and similar applications where a magnet and sensor can be aligned. Features and attributes Function: Magnetic reed switch sensor with normally closed wiring configuration for open/close detection. Compatibility: Suitable for alarm control panels and security systems that accept NC dry contact inputs. Installation: Surfacemount sensor and separate magnet for placement on door and frame; wired terminals for secure connection. Size and fit: Compact sensor and magnet pair designed to be fitted to roller shutter doors and frames without impeding operation. Material and construction: Sturdy enclosure built for repeated operation in door environments; designed for reliable contact switching. Performance: Designed for consistent detection of door movement with minimal false triggers when properly aligned. How it solves problems Immediate detection of unauthorized entry: The contact opens when the door moves away from the sensor, triggering the connected alarm or alert system. Easy retrofit into existing systems: Use the NC wired connection to add door monitoring to current wired alarm panels without additional converters. Reduces installation complexity: Straightforward surface mounting and simple wiring cut installation time and technical overhead. Typical applications Retail storefronts: Monitor roller shutter doors after hours to detect forced openings and integrate with store alarm systems. Residential garages: Connect the sensor to a home alarm panel to report garage door openings and enhance property security. Small warehouses and workshops: Track loading bay or service door status and trigger alerts if doors are opened outside scheduled times. Installation considerations Mount the sensor and magnet so they align when the door is closed; maintain the recommended gap specified by the alarm panel manufacturer or installation guide. Connect to the alarm control panel on the normally closed input terminals; verify operation by opening and closing the door and checking the panel response. Use appropriate weather protection or sheltered mounting if the sensor is exposed to prolonged outdoor conditions. What it includes Wired NC magnetic contact sensor and matching magnet designed for roller shutter door installation. This NC type wired magnetic contact sensor offers a straightforward, dependable way to monitor roller shutter doors and integrate door status into wired alarm systems. Its simple operation and easy installation make it practical for retail, residential, and light industrial security applications.