---
product_id: 337622639
title: "MC-38 Wired Door Window Sensor Magnetic Switch Home Alarm System"
brand: "generic"
price: "HK$31"
currency: HKD
in_stock: true
reviews_count: 1
url: https://www.desertcart.hk/products/337622639-mc-38-wired-door-window-sensor-magnetic-switch-home-alarm
store_origin: HK
region: Hong Kong
---

# 15-25mm Actuation Distance 100V Voltage Power 0.5A Max Switch Current MC-38 Wired Door Window Sensor Magnetic Switch Home Alarm System

**Brand:** generic
**Price:** HK$31
**Availability:** ✅ In Stock

## Summary

> 🔒 Elevate your space with smart, invisible security that never sleeps

## Quick Answers

- **What is this?** MC-38 Wired Door Window Sensor Magnetic Switch Home Alarm System by generic
- **How much does it cost?** HK$31 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hk](https://www.desertcart.hk/products/337622639-mc-38-wired-door-window-sensor-magnetic-switch-home-alarm)

## Best For

- generic enthusiasts

## Why This Product

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

## Key Features

- • **Versatile Application:** Perfect for apartments, offices, hotels, and commercial spaces
- • **Effortless Installation:** Compact design with 30cm cable for quick, hassle-free setup
- • **Robust Wired Reliability:** Stable 0.5A switch current ensures consistent performance
- • **Precision Magnetic Sensing:** Triggers alarms instantly with a 15-25mm detection range
- • **Seamless Security Integration:** Easily embedded in door/window frames for discreet protection

## Overview

The MC-38 Wired Door Window Sensor Magnetic Switch is a compact, high-performance security device designed for residential and commercial use. Operating at 100V with a max switch current of 0.5A, it detects door or window openings within a 15-25mm range using magnetic sensor technology. Its discreet design allows easy embedding into frames, providing reliable intrusion alerts and seamless integration with alarm systems.

## Description

MC-38 Wired Door Window Sensor Magnetic Switch Home Alarm System can be used as a door or window security system. It produces the signal when moved away from each other which can be fed to the microcontroller to perform the desired action as per requirement. This sensor is suitable to use for trigger alarm or ON/OFF light inside a cupboard sliding door. This wired sensor is trigger by the magnet. When the magnet is closed by, the circuit is closed or open if the magnet far from the sensor. Normally closed:-When the magnet together, the circuit is conductive( light on ); when the magnet separates, the circuit is not conductive ( light off ). For example: Install on the door, close door light on. open door light off.

## Features

- Model: MC38; Voltage: 100V; Max. Switch Current: 0.5A; Rated Power: 10 watt
- Actuation Distance : 15-25mm; Easy to install; Strong concealment
- Magnetic sensor alarm, control the switch of the circuit via the built-in magnet; Alarm when someone intrudes into your places; Can be used in places like apartment, hotel, office, etc.; Ideal for residential or commercial use.
- Designed to do embedded in the door or window frame.; cable length: Approx 30cm; Color: White; Material: Plastic
- Dimension:- Length: 28mm; Width: 15mm; Height: 13mm

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Mounting Type | Door Mount |
| Sensor Technology | Magnetic Sensor |
| Manufacturer | Sharvi Electronics |
| Country of Origin | India |
| Number of Memory Sticks | 1 |
| Item part number | ST-2001RO0120 |

## Product Details

- **Colour:** white
- **Brand:** Generic
- **Power Source:** DC Power
- **Compatible Devices:** Home Security System
- **Voltage:** 100 Volts

## Images

![MC-38 Wired Door Window Sensor Magnetic Switch Home Alarm System - Image 1](https://m.media-amazon.com/images/I/31vODZFsA-S._AC_UL320_.jpg)
![MC-38 Wired Door Window Sensor Magnetic Switch Home Alarm System - Image 2](https://m.media-amazon.com/images/I/31vODZFsA-S._AC_UL480_FMwebp_QL65_.jpg)
![MC-38 Wired Door Window Sensor Magnetic Switch Home Alarm System - Image 3](https://m.media-amazon.com/images/I/31vODZFsA-S._AC_UL640_FMwebp_QL65_.jpg)
![MC-38 Wired Door Window Sensor Magnetic Switch Home Alarm System - Image 4](https://m.media-amazon.com/images/I/31vODZFsA-S._AC_UL800_FMwebp_QL65_.jpg)
![MC-38 Wired Door Window Sensor Magnetic Switch Home Alarm System - Image 5](https://m.media-amazon.com/images/I/31vODZFsA-S._AC_UL960_FMwebp_QL65_.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Good
*by A***M on 3 August 2022*

V Good

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**Shop now:** [https://www.desertcart.hk/products/337622639-mc-38-wired-door-window-sensor-magnetic-switch-home-alarm](https://www.desertcart.hk/products/337622639-mc-38-wired-door-window-sensor-magnetic-switch-home-alarm)

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*Product available on Desertcart Hong Kong*
*Store origin: HK*
*Last updated: 2026-02-24*