---
product_id: 473872178
title: "5 Pack Magnetic Contacts Switch Window Door Sensor for Alarm System NC 3/8\""
brand: "wesua"
price: "₪44"
currency: ILS
in_stock: true
reviews_count: 9
category: "Wesua"
url: https://www.desertcart.co.il/products/473872178-5-pack-magnetic-contacts-switch-window-door-sensor-for-alarm
store_origin: IL
region: Israel
---

# φ10mm compact size No batteries needed Flush mount, easy install 5 Pack Magnetic Contacts Switch Window Door Sensor for Alarm System NC 3/8"

**Brand:** wesua
**Price:** ₪44
**Availability:** ✅ In Stock

## Summary

> 🔐 Secure your space, stay effortlessly connected.

## Quick Answers

- **What is this?** 5 Pack Magnetic Contacts Switch Window Door Sensor for Alarm System NC 3/8" by wesua
- **How much does it cost?** ₪44 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.il](https://www.desertcart.co.il/products/473872178-5-pack-magnetic-contacts-switch-window-door-sensor-for-alarm)

## 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

- • **Discreet & Sleek:** Flush-mounted cylindrical design fits seamlessly on windows and doors for a clean, professional look.
- • **Reliable NC Contact:** Normally closed reed switch ensures instant, accurate alarm triggers for peace of mind.
- • **Effortless DIY Setup:** Simple press-to-fit installation means no costly technician visits—secure your space in minutes.
- • **Value Pack Advantage:** Five pairs per pack deliver comprehensive coverage and cost-effective security upgrades.
- • **Universal Compatibility:** Standard 300mm #24 AWG leads work with most alarm panels—plug and protect without hassle.

## Overview

The WESUA 5 Pack Magnetic Contact Switches are compact, flush-mounted sensors designed for window and door security. Featuring a normally closed reed switch and standard wiring, they provide reliable alarm triggers without batteries. Easy to install and conceal, this pack of five pairs offers a cost-effective solution for enhancing your home or office security system.

## 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 Material: ABS plastic Color: white Pack: 5pairs/bag

Review: Works great - Works perfectly
Review: Easy to install and works fine - Very simple to install and they work just fine. There is nothing fancy about these and they are just simple, cheap replacement contacts that anyone can install. If you need to replace a few of these at your home you can easily do it yourself instead of paying an alarm company to do it for you.

## Features

- Small size, easy to install and concealment
- Flush mounted cylindrical magnetic contacts
- φ10mm 3/8" diameter press to fit
- Ideal for window or wooden door
- Standard 300mm #24 AWG leads

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0B7DSF6KW |
| Batteries Required? | No |
| Best Sellers Rank | #147,237 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #42 in Garage Door Sensors |
| Control Method | Touch |
| Customer Reviews | 4.4 4.4 out of 5 stars (75) |
| Date First Available | July 23, 2022 |
| Description Pile | Alkaline |
| Included Components | Switch |
| Item Weight | 1.76 ounces |
| Item model number | MCS-33B |
| Manufacturer | WESUA |
| Mounting Type | Window Mount |
| Part Number | MCS-33B |
| Product Dimensions | 7.87 x 5.91 x 0.79 inches |
| Sensor Technology | Contact Sensor |
| Voltage | 12 Volts (DC) |

## Product Details

- **Battery Description:** Alkaline
- **Brand:** WESUA
- **Color:** white
- **Compatible Devices:** Alarm Panels
- **Power Source:** Battery Powered

## Images

![5 Pack Magnetic Contacts Switch Window Door Sensor for Alarm System NC 3/8" - Image 1](https://m.media-amazon.com/images/I/41Hn2zT8DyL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Works great
*by B***T on March 11, 2025*

Works perfectly

### ⭐⭐⭐⭐⭐ Easy to install and works fine
*by Z***S on January 7, 2024*

Very simple to install and they work just fine. There is nothing fancy about these and they are just simple, cheap replacement contacts that anyone can install. If you need to replace a few of these at your home you can easily do it yourself instead of paying an alarm company to do it for you.

### ⭐⭐⭐⭐⭐ Great Buy
*by F***O on November 1, 2023*

These contacts were perfect. They easily fit my door frame for my home alarm system. Along with a quick electrical connection and I was good to go at an outstanding price. Plus I ordered them on Tuesday and they were in my mailbox on Wednesday US postal delivery.

## Frequently Bought Together

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**Shop now:** [https://www.desertcart.co.il/products/473872178-5-pack-magnetic-contacts-switch-window-door-sensor-for-alarm](https://www.desertcart.co.il/products/473872178-5-pack-magnetic-contacts-switch-window-door-sensor-for-alarm)

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*Product available on Desertcart Israel*
*Store origin: IL*
*Last updated: 2026-02-15*