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Magnetic Reed Switch,Normally Closed/Open NO/NC Waterproof DC 12V Magnetic Switc For Sale


Magnetic Reed Switch,Normally Closed/Open NO/NC Waterproof DC 12V Magnetic Switc
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Magnetic Reed Switch,Normally Closed/Open NO/NC Waterproof DC 12V Magnetic Switc:
$18.80

2 Sets Magnetic Door Contact Reed Switch – NO/NC Recessed Security Sensor

Enhance your door and window security system with these Magnetic Door Contact Reed Switches. Designed with combined Normally Open (NO) and Normally Closed (NC) contacts, these compact magnetic switches provide flexible wiring options for alarm systems, access control, LED circuits, relays, GPS low-voltage devices, and other compatible applications.

NO & NC Combined Contact Design

The combined NO/NC magnetic reed switch allows you to choose between Normally Open and Normally Closed operation based on your wiring requirements.

This flexible design makes the sensor suitable for a variety of security and low-voltage electrical projects.

Important: Please check the working mode and wiring configuration shown in the product images to confirm that this is the switch you need before purchasing.

Easy-to-Identify Wire Connections

The three wires are color-coded for straightforward installation:

  • Black: Common (COM)

  • Yellow: Normally Open (NO)

  • Red: Normally Closed (NC)

The color-coded wiring makes it easier to identify the required contact during installation and connection to compatible alarm or control systems.

Compact Recessed Magnetic Door Sensor

With a compact size of approximately 23 × 14 × 6 mm, this magnetic reed contact can be installed discreetly on compatible doors, windows, cabinets, and other applications.

The small design is ideal for installations where a low-profile or hidden security contact is preferred.

Electrical Specifications

Designed for compatible low-voltage applications, this magnetic contact switch features:

  • Rated Power: 5W

  • Maximum Voltage: 12V

  • Maximum Current: 0.25A

  • Transmitting / Sensing Distance: 0–15 mm

  • Product Size: 23 × 14 × 6 mm

  • Mounting Hole Size: 3 mm

Please confirm your electrical requirements before installation and do not exceed the rated specifications.

Wide Range of Applications

These NO/NC magnetic reed switches can be used in a variety of low-voltage security and electrical applications, including:

  • Door alarm sensors

  • Window alarm sensors

  • Home security systems

  • Access control systems

  • Anti-theft systems

  • LED switches

  • Relay circuits

  • GPS low-voltage devices

  • Cabinets and storage doors

  • Wooden doors and windows

The magnetic contact design helps detect door or window opening and closing when integrated into a compatible alarm or control circuit.

Simple Installation Options

The package includes both adhesive stickers and mounting screws, giving you flexible installation options depending on your application.

The compact sensor design makes it suitable for discreet installation on compatible doors, windows, cabinets, and other surfaces.

Package Includes
  • 2 × Black Magnetic Door Contact Reed Switch Sets

  • 4 × Adhesive Stickers

  • 8 × Mounting Screws

Product Features
  • Product Type: Magnetic Door Contact Reed Switch

  • Contact Type: NO + NC Combined

  • Wire Colors: Black / Yellow / Red

  • Rated Power: 5W

  • Maximum Voltage: 12V

  • Maximum Current: 0.25A

  • Sensing Distance: 0–15 mm

  • Sensor Size: 23 × 14 × 6 mm

  • Mounting Hole: 3 mm

  • Application: Door, Window, Alarm, Security & Low-Voltage Systems

Upgrade your security or low-voltage control setup with these compact NO/NC Magnetic Door Contact Reed Switches. With flexible contact modes, color-coded wiring, discreet installation, and included mounting accessories, they are a practical choice for compatible door, window, alarm, and access-control applications.


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