Best Alarm Door Sensor Wired in 2025
Updated on July 2025
#1
Recommended
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- Compact design allows for easy installation in recessed spaces
- Offers a complete 180° activation angle
- Staggered T terminals provide reliable and secure electrical connections
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- Compact design allows for easy installation in recessed spaces
- Offers a complete 180° activation angle
- Staggered T terminals provide reliable and secure electrical connections
#2
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- Model: RC-33 Magnetic Door Switch
- Actuation Distance: 15-25mm; Maximum Current: 0.5A; Maximum Voltage: 110V; Power Rating: 10W
- Material: ABS housing; Wire Type: 1007UL#24AWG; Color: White; Weight: 36g
- Normally Closed (NC) operation: conducts when magnet is close, and stops conducting when separated.
- Includes 5 Magnetic Door Switches in the package
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- Model: RC-33 Magnetic Door Switch
- Actuation Distance: 15-25mm; Maximum Current: 0.5A; Maximum Voltage: 110V; Power Rating: 10W
- Material: ABS housing; Wire Type: 1007UL#24AWG; Color: White; Weight: 36g
- Normally Closed (NC) operation: conducts when magnet is close, and stops conducting when separated.
- Includes 5 Magnetic Door Switches in the package
#3
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- Product Name: Magnetic Door Switch, Model: MC-33C
- Contact Type: NC (Normally Closed)
- Functions as an anti-theft alarm for metal doors and windows
- In NC configuration, the circuit closes when the magnet is together (light on) and opens when separated (light off)
- Compatible with commercial and residential card access systems and various security alarm systems
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- Product Name: Magnetic Door Switch, Model: MC-33C
- Contact Type: NC (Normally Closed)
- Functions as an anti-theft alarm for metal doors and windows
- In NC configuration, the circuit closes when the magnet is together (light on) and opens when separated (light off)
- Compatible with commercial and residential card access systems and various security alarm systems
#4
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- Easy installation with double-sided tape
- Compatible with 22-28 AWG wires
- Durable design with a white casing
- Normally closed switch activates when the door is closed
- Over 1/2 inch operation distance, ideal for most doors and windows
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- Easy installation with double-sided tape
- Compatible with 22-28 AWG wires
- Durable design with a white casing
- Normally closed switch activates when the door is closed
- Over 1/2 inch operation distance, ideal for most doors and windows
#5
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- Magnetic reed switch for electrical operation via magnetic field, suitable for alarm systems and home security.
- Designed for easy installation on windows and doors with specified gap of 15mm to 25mm.
- Made from fire-resistant ABS material; white color blends with home decor.
- Connects to both wired and wireless alarm systems, providing reliable door/window security.
- Features two switch types: normally open (NO) and normally closed (NC), allowing for versatile functionality in circuit connectivity.
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- Magnetic reed switch for electrical operation via magnetic field, suitable for alarm systems and home security.
- Designed for easy installation on windows and doors with specified gap of 15mm to 25mm.
- Made from fire-resistant ABS material; white color blends with home decor.
- Connects to both wired and wireless alarm systems, providing reliable door/window security.
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#6
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- Compatible with wooden, glass, and plastic doors
- Essential component for home security alarm systems
- Features screw terminal connections for easy installation
- Surface mountable with double-sided tape; operational gap of 15mm in non-magnetic environments
- Normally closed (NC) type: deactivates when the door is opened
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- Compatible with wooden, glass, and plastic doors
- Essential component for home security alarm systems
- Features screw terminal connections for easy installation
- Surface mountable with double-sided tape; operational gap of 15mm in non-magnetic environments
- Normally closed (NC) type: deactivates when the door is opened
#7
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- Surface-mounted magnetic door switch (Model: MC-31) made of durable plastic in white.
- No-contact (NC) design with an actuation distance of 8mm±18mm and 5.8mm hole diameter.
- Dimensions: Available in sizes 64mm x 12mm x 12mm and 64mm x 20mm x 12mm; pack includes 5 switches and 20 screws.
- NC functionality allows conductivity when the magnet is near the switch; signal is disconnected when the magnet is away.
- Suitable for security applications on magnetic windows, doors, and cabinets.
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- Surface-mounted magnetic door switch (Model: MC-31) made of durable plastic in white.
- No-contact (NC) design with an actuation distance of 8mm±18mm and 5.8mm hole diameter.
- Dimensions: Available in sizes 64mm x 12mm x 12mm and 64mm x 20mm x 12mm; pack includes 5 switches and 20 screws.
- NC functionality allows conductivity when the magnet is near the switch; signal is disconnected when the magnet is away.
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#8
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- Includes 2 sets of MC-33C Alarm Magnetic Reed Switches
- Ideal for use as anti-theft alarms on metal doors and windows
- Easy installation with small screw terminals for straightforward wiring
- Normally Closed (NC) contact type: circuit is conductive when magnet is together; non-conductive when separated
- Compatible with various commercial and residential card access and security alarm systems
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- Includes 2 sets of MC-33C Alarm Magnetic Reed Switches
- Ideal for use as anti-theft alarms on metal doors and windows
- Easy installation with small screw terminals for straightforward wiring
- Normally Closed (NC) contact type: circuit is conductive when magnet is together; non-conductive when separated
- Compatible with various commercial and residential card access and security alarm systems
#9
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- Model RC-33 magnetic door switch with 15-25mm actuation distance.
- Specifications: Max current of 0.5A, max contact power of 10W, and max working voltage of 110V.
- Made from durable ABS housing with a 1007UL#24AWG white wire, weighing 36g.
- Normally Closed (NC): The circuit is conductive when the magnet is together and non-conductive when separated.
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- Model RC-33 magnetic door switch with 15-25mm actuation distance.
- Specifications: Max current of 0.5A, max contact power of 10W, and max working voltage of 110V.
- Made from durable ABS housing with a 1007UL#24AWG white wire, weighing 36g.
- Normally Closed (NC): The circuit is conductive when the magnet is together and non-conductive when separated.
#10
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- Durable plastic construction ensures long-lasting performance and reliability for home security applications.
- Quick and easy installation with adhesive tape; no wiring or professional help needed, compatible with a working current under 12V.
- Comes with 20 sets of window and door sensors and 80 screws, suitable for various settings from homes to large establishments.
- Versatile usage for doors and windows made of wood, glass, or plastic in residential, commercial, and retail environments.
- Normally closed operation: conductive when magnet is near switch; ideal for alarms, LEDs, and door access control systems.
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- Durable plastic construction ensures long-lasting performance and reliability for home security applications.
- Quick and easy installation with adhesive tape; no wiring or professional help needed, compatible with a working current under 12V.
- Comes with 20 sets of window and door sensors and 80 screws, suitable for various settings from homes to large establishments.
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