---
product_id: 483218129
title: "5 Pack NC Magnetic Switch Contacts Door Sensor for Home Alarm Security System"
brand: "wesua"
price: "31768CFA"
currency: XOF
in_stock: true
reviews_count: 10
category: "Wesua"
url: https://www.desertcart.sn/products/483218129-5-pack-nc-magnetic-switch-contacts-door-sensor-for-home
store_origin: SN
region: Senegal
---

# NC (Normally Closed) switch for reliable security Surface mount with hidden screws for sleek install ≥20mm operation gap for precise door state detection 5 Pack NC Magnetic Switch Contacts Door Sensor for Home Alarm Security System

**Brand:** wesua
**Price:** 31768CFA
**Availability:** ✅ In Stock

## Summary

> 🛡️ Lock in peace of mind with magnetic precision!

## 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?** 31768CFA with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sn](https://www.desertcart.sn/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

- • **Effortless Installation:** Surface mount with included screws—get your system up in minutes
- • **Discreet & Durable Design:** Attractive ABS plastic cover hides screws for a clean, professional look
- • **Value Pack for Full Coverage:** Five pairs per pack—perfect for securing multiple entry points
- • **Reliable Door State Detection:** NC magnetic switch triggers alarms instantly when doors open
- • **Seamless Security Integration:** Works flawlessly with any wired burglar alarm or access control system

## Overview

This 5-pack of NC magnetic switch contacts offers a reliable, easy-to-install solution for wired home and business alarm systems. Featuring a ≥20mm operation gap and a sleek ABS plastic cover that conceals mounting hardware, these surface-mounted sensors ensure discreet, professional security monitoring for doors and windows. Compatible with any wired burglar alarm or access control system, they deliver dependable door state detection to keep your property safe.

## 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: Good design and quality at a good price. - No issues. Just works
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!

## 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 |
| Batteries Included? | No |
| Batteries Required? | No |
| Best Sellers Rank | #114 in Home Security Systems |
| Control Method | Touch |
| Customer Reviews | 4.2 4.2 out of 5 stars (242) |
| Date First Available | August 24, 2022 |
| Included Components | Switch |
| Item Package Quantity | 1 |
| Item Weight | 4.2 ounces |
| Item model number | WE-MC-44B |
| Manufacturer | WESUA |
| Mounting Type | Wall Mount |
| Part Number | WE-MC-44B |
| Product Dimensions | 9.84 x 5.91 x 0.39 inches |
| Sensor Technology | Contact Sensor |
| 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)

## Customer Reviews

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

No issues. Just works

### ⭐⭐⭐⭐⭐ 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!

### ⭐⭐⭐⭐ Small, simple, and easy to install. Worked flawlessly.
*by P***1 on September 24, 2025*

These magnetic switch contacts worked great for my needs. The sensors are very small, simple, and easy to install. Just pop the cover off, connect the two wires, slip the cover back on, and then position the magnet nearby. The install took about 5 minutes, taking my time and testing along the way. Note that the magnets are quite strong, so when positioning the sensor and magnet, check the distance and how far apart they need to be to trigger the alarm. If you place them too close to each other, your door or window may be ajar before it triggers. In my case, I replaced 25-year-old sensors that were acting up, and these worked flawlessly, but I had to position the sensors further apart than the original ones. I can't comment on durability or how long they will last. I only installed them this week, but so far, they work flawlessly. They are a good value. The one thing I wish is that they included some two-sided tape because I cannot drill into my impact and window and door frames without invalidating my impact window warranty.

## 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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**Shop now:** [https://www.desertcart.sn/products/483218129-5-pack-nc-magnetic-switch-contacts-door-sensor-for-home](https://www.desertcart.sn/products/483218129-5-pack-nc-magnetic-switch-contacts-door-sensor-for-home)

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*Product available on Desertcart Senegal*
*Store origin: SN*
*Last updated: 2026-03-19*