---
product_id: 483218129
title: "5 Pack NC Magnetic Switch Contacts Door Sensor for Home Alarm Security System"
brand: "wesua"
price: "£13.12"
currency: GBP
in_stock: true
reviews_count: 10
category: "Wesua"
url: https://www.desertcart.co.uk/products/483218129-5-pack-nc-magnetic-switch-contacts-door-sensor-for-home
store_origin: GB
region: United Kingdom
---

# ≥20mm operation gap 28V max voltage Surface mount, screw terminals 5 Pack NC Magnetic Switch Contacts Door Sensor for Home Alarm Security System

**Brand:** wesua
**Price:** £13.12
**Availability:** ✅ In Stock

## Summary

> 🚪🔒 Lock in safety with style and simplicity!

## Quick Answers

- **What is this?** 5 Pack NC Magnetic Switch Contacts Door Sensor for Home Alarm Security System by wesua
- **How much does it cost?** £13.12 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/483218129-5-pack-nc-magnetic-switch-contacts-door-sensor-for-home)

## Best For

- wesua enthusiasts

## Why This Product

- Trusted wesua brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Value-Packed 5-Pack:** Get five pairs in one set—perfect for securing multiple entry points without breaking the bank.
- • **Effortless Installation:** Surface mount with included screws and screw terminals means setup is quick and hassle-free.
- • **Sleek, Concealed Design:** Attractive cover hides screws for a clean, professional look that complements modern interiors.
- • **Reliable Magnetic Detection:** Normally closed reed switch triggers alarms immediately when doors or windows open beyond 20mm gap.
- • **Seamless Security Integration:** Works flawlessly with any wired burglar alarm or access control system for instant peace of mind.

## Overview

The 5 Pack NC Magnetic Switch Contacts are durable ABS plastic sensors designed for wired home security systems. Featuring a normally closed reed switch and magnet, they detect door/window openings beyond 20mm to trigger alarms. With a max voltage of 28V DC and surface mount installation, these sleek, screw-terminal contacts offer reliable, easy-to-install protection for multiple entry points.

## Description

Magnetic contacts is widely used for alarm system(panel) to detect state of door. It consist of a reed switch part and a magnet part . When door closed, reed switch is effected by magnet and turn ON; when door open, reed switch is effected by magnet and turn OFF, trigger alarm. Contact type : NC (normally closed),switch OFF when door is opened Material: ABS plastic Color: white Pack: 5pairs/bag Operation gap : ≥ 20mm Mounting type : Surface mounting Max. voltage : 28V DC Max. current : 0.2A Max. load : 3W Material : ABS plastic

Review: Great product - These are great! They appear well-made, were easy to install and work as promised! If you need new magnets for your alarm system, these will definitely do the trick - and the price - amazing!
Review: Good design and quality at a good price. - No issues. Just works

## Features

- Screw terminal surface mounted magnetic contacts
- Nice looking and easy install
- Attractive cover keeps mounting screws and terminal screws hidden
- Mounting screws included
- Great for use in family and factory window, door, etc.
- This contact works with any wired burglar alarm system or wired access control available

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0BBPXF9M2 |
| Best Sellers Rank | #135 in Home Security Systems |
| Brand | WESUA |
| Built-In Media | Switch |
| Color | white |
| Compatible Devices | Home Security System |
| Control Method | Touch |
| Customer Reviews | 4.1 out of 5 stars 260 Reviews |
| Item Dimensions L x W x H | 9.84"L x 5.91"W x 0.39"H |
| Item Weight | 0.12 Kilograms |
| Manufacturer | WESUA |
| Mfr Part Number | WE-MC-44B |
| Model Number | WE-MC-44B |
| Mounting Type | Wall Mount |
| Power Source | Corded Electric |
| Product Dimensions | 9.84"L x 5.91"W x 0.39"H |
| Sensor Technology | Contact Sensor |
| Smart Home Compatibility | Not Smart Home Compatible |
| Unit Count | 5.0 Count |
| Voltage | 28 Volts |

## Product Details

- **Brand:** WESUA
- **Color:** white
- **Compatible Devices:** Home Security System
- **Power Source:** Corded Electric
- **Product Dimensions:** 9.84"L x 5.91"W x 0.39"H

## Images

![5 Pack NC Magnetic Switch Contacts Door Sensor for Home Alarm Security System - Image 1](https://m.media-amazon.com/images/I/417JcB0R4ZL.jpg)
![5 Pack NC Magnetic Switch Contacts Door Sensor for Home Alarm Security System - Image 2](https://m.media-amazon.com/images/I/414wvILy-IL.jpg)
![5 Pack NC Magnetic Switch Contacts Door Sensor for Home Alarm Security System - Image 3](https://m.media-amazon.com/images/I/512nr6y-6hL.jpg)
![5 Pack NC Magnetic Switch Contacts Door Sensor for Home Alarm Security System - Image 4](https://m.media-amazon.com/images/I/41EqlIWpkfL.jpg)
![5 Pack NC Magnetic Switch Contacts Door Sensor for Home Alarm Security System - Image 5](https://m.media-amazon.com/images/I/516qr8n+hZL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great product
*by M***I on December 12, 2025*

These are great! They appear well-made, were easy to install and work as promised! If you need new magnets for your alarm system, these will definitely do the trick - and the price - amazing!

### ⭐⭐⭐⭐⭐ Good design and quality at a good price.
*by A***R on February 17, 2026*

No issues. Just works

### ⭐⭐⭐⭐ They do a great job and work well.
*by C***R on May 8, 2026*

They work great!!! The battery's could las a little longer, but that is minor inconvenience.

## Frequently Bought Together

- WESUA 5 Pack NC Magnetic Switch Contacts Door Sensor for Home Alarm Security System
- Amazon Basics 6-Pack Non-Rechargeable CR123A Lithium Batteries, 3 Volt, Up to 10-Year Shelf Life
- LiCB CR2032 3V Lithium Battery(10-Pack)

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*Product available on Desertcart United Kingdom*
*Store origin: GB*
*Last updated: 2026-05-29*