MS2 Wired Door Window Sensor Magnetic NO/NC Switch Home Alarm System

The MS-2 Magnetic Reed Switch (NC/NO) is a surface-mount rectangular contact sensor designed for security and automation systems. It consists of two units: a reed switch with wire terminals and a magnet. This model supports dual wiring modes – NC (Normally Closed) and NO (Normally Open) – offering flexibility for different security system requirements. When the door/window is closed, the magnet keeps the reed contact stable; when opened, the circuit changes state, triggering an alarm or controller.

Technical Specifications:

• Model: MS-2 (NC/NO)
• Type: Magnetic Reed Switch (Selectable NC/NO)
• Housing Material: ABS plastic
• Shape: Rectangular surface-mount with screw holes
• Color: White
• Dimensions:
• Switch Part: 64.5 mm × 19.5 mm
• Magnet Part: 64.5 mm × 13 mm
• Contact Rating: 100 mA @ 100 V DC (typical)
• Operating Gap (Sensing Distance): 20–30 mm
• Wire Connection: Screw terminals with 3-wire option for NC/NO
• Switch Type: Reed contact (dual mode NC or NO)
• Installation: Surface mount with screws (included)

Features:

• Dual operation: NC (Normally Closed) and NO (Normally Open) via wiring
• Large surface-mount rectangular design for robust applications
• Wide sensing distance for reliable detection
• Screw terminals for secure wire connection
• ABS housing ensures durability and long service life
• Easy installation with mounting screws
• Works with most wired alarm and automation systems

Applications:

• Home Security: Detects unauthorized door/window openings
• Commercial Use: Offices, shops, and showrooms with access control systems
• Industrial Use: Cabinets, rolling shutters, and entry gates
• Retail Stores: Monitoring of showcases and storerooms
• Automation Systems: Integration with smart home and IoT-based security systems