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Magnetic Door Contact Reed Switch 27mm in Bangladesh
Magnetic Door Contact Reed Switch 27mm in Bangladesh

Magnetic Door Contact Reed Switch 27mm

SKU: 191205003491

Brand : Made in China

Warranty : 3 Days

৳ 160.04

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Category: Switch & Button

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Additional Information

Description of Magnetic Door Contact Reed Switch 27mm

The Magnetic Door Contact Reed Switch 27mm is a compact Normally Open (NO) magnetic sensor designed to detect the open or closed status of wooden doors and windows. It includes a reed switch sensor with a matching magnet to create a simple and reliable open/close detection system.

When the door or window is closed, the magnet stays near the sensor and the circuit closes. When the door or window opens, the magnet moves away and the circuit opens. This status change can be detected by a compatible alarm panel, controller, smart-home system, or DIY electronics project.

Its compact size, 300mm wire lead, and flexible mounting options make it suitable for home security, access monitoring, Arduino, ESP32, Raspberry Pi, and automation projects.


Key Feature

  • Compact 27mm magnetic reed switch.
  • Normally Open (NO) contact type.
  • Suitable for wooden doors and windows.
  • Circuit closes when the magnet is near the sensor.
  • 22 AWG wire lead with approximately 300mm length.
  • Supports screw mounting or double-sided tape mounting.
  • Suitable for compatible security alarms, smart-home systems, and DIY electronics projects.

Technical Specification

Parameter Value
Product Type Magnetic Door Contact Reed Switch
Contact Type Normally Open (NO)
Switch Pattern Normally Open
Color White
Material ABS
Dimensions 27mm × 14mm × 8mm
Maximum Switching Current 500mA
Maximum Switching Voltage DC 100V
Rated Power 10W
Actuation Distance 8–10mm
Wire Lead 22 AWG, Approx. 300mm
Mounting Method Screws or Double-Sided Tape
Recommended Application Wooden Doors and Window

Note: DC 100V is the maximum switching-voltage rating of the contact; it is not the product’s power-supply voltage.


How the NO Contact Works

This product is a Normally Open (NO) magnetic reed switch.

Magnet Position Contact Status Circuit Condition
Magnet near the sensor ON Circuit Closed / continuity available
Magnet away from the sensor OFF Circuit Open / no continuity

Door Monitoring Example

  • Door closed: Magnet is near the sensor → circuit is closed.
  • Door opened: Magnet moves away from the sensor → circuit opens.
  • A compatible controller or alarm system detects the status change.

Important: This is an NO type sensor only. It is not an NC sensor. Please confirm that your system requires an NO contact before purchase.

NO vs NC Contact Type

Contact Type Magnet Near the Sensor Magnet Away from the Sensor This Product
NO – Normally Open  Circuit Closed    Circuit Open    Yes  
 NC – Normally Closed    Circuit Open    Circuit Closed    No  

Installation Note

Install the sensor and magnet facing each other. Keep the distance between them within approximately 8–10mm for reliable detection. Before installation, confirm that your controller or alarm panel supports an NO contact.


Application

  • Wooden door and window monitoring
  • Smart-home automation
  • Home security and access monitoring
  • Arduino, ESP32, and Raspberry Pi projects
  • Cabinet, drawer, and small entry-point detection
  • DIY electronics and robotics projects

Package Contents

  • 1 × Magnetic Reed Switch Sensor

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Magnetic Door Contact Reed Switch 27mm
৳ 160.04

What is the price of Magnetic Door Contact Reed Switch 27mm in BD?

The latest and best price of Magnetic Door Contact Reed Switch 27mm in BD is BDT 160.04 Taka. You can purchase the Magnetic Door Contact Reed Switch 27mm at the best price on TechShopBD.com or visit our office to pick yours up today.

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You can easily buy the Magnetic Door Contact Reed Switch 27mm at the best price in BD from TechShopBD.com (our online store) or visit our physical office.

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