Waterproof Wired Door Reed Sensor Switch – NC Contact
Waterproof Wired Door Reed Sensor Switch – NC Contact
Waterproof Wired Door Contact Reed Sensor Switch
Keep your home or facility secure with this reliable waterproof wired door contact reed sensor switch. Designed with a normally closed (NC) configuration, this compact magnetic sensor is ideal for alarm systems, access control panels, smart home automation, and security monitoring. Its robust metal-shielded, fire-resistant ABS housing ensures long-lasting performance even in demanding environments.
Key Features
- Waterproof Design: Sealed construction protects against moisture, making it suitable for both indoor and outdoor door/window installations.
- Normally Closed (NC) Connection: Triggers an alert the moment the magnetic contact is broken — ideal for intrusion detection and access monitoring.
- Metal-Shielded Anti-Fire ABS Housing: Durable and flame-retardant casing for added safety and longevity.
- Compact & Discreet: Slim 13 × 66 × 14 mm profile fits flush to door and window frames without being obtrusive.
- Wide Compatibility: Works with most residential and commercial alarm systems, home automation controllers, and security panels.
- Easy Wired Installation: Simple two-wire connection for fast, reliable setup — no special tools required.
Technical Specifications
- Connection Mode: NC (Normally Closed)
- Rated Current: 100 mA
- Rated Voltage: 200 VDC
- Rated Power: 3 W
- Operating Distance: 15 mm – 25 mm
- Dimensions: 13 × 66 × 14 mm
- Housing Material: Metal-shielded, fire-resistant ABS
- Made in Mainland China
Ideal Applications
- Residential & commercial door/window security systems
- Smart home automation triggers
- Access control and entry monitoring
- Industrial cabinet and panel intrusion detection
- DIY security and electronics projects
For guidance on home security best practices, visit the U.S. Consumer Product Safety Commission (CPSC) Home Safety Guide.
Frequently Asked Questions
Q: What does "Normally Closed (NC)" mean for a reed sensor switch?
A: A Normally Closed (NC) reed sensor switch maintains a completed electrical circuit when the magnet is in close proximity (within the operating distance of 15–25 mm). When the door or window opens and the magnet moves away, the circuit breaks and triggers the connected alarm or control system. This makes it highly effective for intrusion detection and security applications.
Q: Is this door contact sensor suitable for outdoor use?
A: Yes. The waterproof, metal-shielded fire-resistant ABS housing is designed to withstand moisture and humidity, making it suitable for both indoor and outdoor installations on doors, windows, gates, and cabinets.
Q: How do I install the wired door contact reed sensor switch?
A: Installation is straightforward. Mount the sensor body on the door frame and the magnet on the moving door so they align within the 15–25 mm operating distance. Connect the two wires to your alarm panel or control system's NC input terminals. No special tools are needed, and the slim 13 × 66 × 14 mm profile allows for a discreet, flush-mount appearance.
Q: What alarm systems are compatible with this reed sensor?
A: This sensor is compatible with virtually any alarm panel, home automation controller, or security system that accepts a standard NC (Normally Closed) wired input, operating at up to 200 VDC and 100 mA. Always verify your specific system's input requirements before installation.