---
product_id: 553565673
title: "WolfGuard Wolf-Guard 433MHz MC-03B Door Window Sensor for Home Guard System,Power Switch,Emergency Button"
brand: "wolf guard"
price: "¥92"
currency: JPY
in_stock: false
reviews_count: 5
url: https://www.desertcart.jp/products/553565673-wolfguard-wolf-guard-433mhz-mc-03b-door-window-sensor-home
store_origin: JP
region: Japan
---

# Compact 3"x1"x0.5" & 2.3"x0.5"x0.3" sizes 80m wireless range @ 433.92MHz 2+ years battery life (CR2032) WolfGuard Wolf-Guard 433MHz MC-03B Door Window Sensor for Home Guard System,Power Switch,Emergency Button

**Brand:** wolf guard
**Price:** ¥92
**Availability:** ❌ Out of Stock

## Summary

> 🚪🔒 Elevate your home security with sleek, smart sensing power!

## Quick Answers

- **What is this?** WolfGuard Wolf-Guard 433MHz MC-03B Door Window Sensor for Home Guard System,Power Switch,Emergency Button by wolf guard
- **How much does it cost?** ¥92 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/553565673-wolfguard-wolf-guard-433mhz-mc-03b-door-window-sensor-home)

## Best For

- wolf guard enthusiasts

## Why This Product

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

## Key Features

- • **Long-Lasting Power:** Built-in CR2032 battery delivers over 2 years of uninterrupted protection.
- • **Reliable 433MHz Signal:** Robust 80-meter wireless range ensures your alarm system never misses a beat.
- • **Ultra-Thin Patent-Design:** Sleek, modern sensor fits discreetly on any door or window frame.
- • **Instant Alert Sensitivity:** Triggers alarm within 15mm of door/window opening for real-time security.
- • **Seamless Stick-On Installation:** Peel, stick, and secure your home in seconds—no tools required.

## Overview

The WolfGuard MC-03B is a compact, wireless door/window sensor featuring a patented ultra-thin design, 80-meter 433.92MHz transmission range, and a built-in CR2032 battery lasting over 2 years. It installs effortlessly with peel-and-stick adhesive and instantly alerts your home alarm system within 15mm of opening, making it an essential upgrade for modern, proactive home security.

## Description

Wolf-Guard wireless MC-03B door window sensor has ultra-thin modern design (appearance design has patent), suitable for various kinds of doors and windows.Emitting distance: no obstacle 80M.Emitting frequency: 433.92MHz.Emitting code: 2262 .Can work perfect with all of our alarm system,please let me know what kind of alarm system in your hand before you order.

## Features

- SIZE:big 3”X1”X0.5” ,small 2.3”X0.5”X0.3”
- POWERFUL: built-in DC3V,CR2032 li battery, lasts for over 2 years
- BOX CONTENT: 1 transmitter and 1 magnetic bar,2 sticks,1 manual
- INSTALLATION:just peal the sticker and stick it,the small must be on the big right and bottom aligned
- SENSITIVE:work with home alarm system,it will send the alarm signal to control host once the door or window are opened only 15mm

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Mounting Type | Door Mount |
| Maximum Range | 80 metres |
| Sensor Technology | Contact Sensor |
| UPC | 711005689656 |
| Manufacturer | ChiTongDa |
| Item model number | Door sensor |
| Product Dimensions | 8 x 3 x 11 cm; 30 g |
| ASIN | B077BX5NZZ |

## Product Details

- **Brand:** wolf guard
- **Power Source:** Battery Powered
- **Number of Batteries:** 1 CR2 batteries required. (included)
- **Voltage:** 3 Volts
- **Control Method:** Remote

## Images

![WolfGuard Wolf-Guard 433MHz MC-03B Door Window Sensor for Home Guard System,Power Switch,Emergency Button - Image 1](https://m.media-amazon.com/images/I/61ewvu2XnUL.jpg)
![WolfGuard Wolf-Guard 433MHz MC-03B Door Window Sensor for Home Guard System,Power Switch,Emergency Button - Image 2](https://m.media-amazon.com/images/I/61PPmI6jrNS.jpg)
![WolfGuard Wolf-Guard 433MHz MC-03B Door Window Sensor for Home Guard System,Power Switch,Emergency Button - Image 3](https://m.media-amazon.com/images/I/61phJq2rcGL.jpg)
![WolfGuard Wolf-Guard 433MHz MC-03B Door Window Sensor for Home Guard System,Power Switch,Emergency Button - Image 4](https://m.media-amazon.com/images/I/71c3nbe-WxL.jpg)
![WolfGuard Wolf-Guard 433MHz MC-03B Door Window Sensor for Home Guard System,Power Switch,Emergency Button - Image 5](https://m.media-amazon.com/images/I/514QggXpixL.jpg)

## Customer Reviews

### ⭐⭐⭐ 







  
    Non riesco ad inserirlo nell'impianto.qualcuno potrebbe spiegarlo??
  
  

*by G***. on Reviewed in Italy on 23 October 2023*

Nessuna istruzione per includerlo nell'impianto

### ⭐⭐⭐ 







  
    Economico ma sensibile
  
  

*by M***O on Reviewed in Italy on 11 September 2023*

Funzionale ed economico ma il mio esemplare ė troppo sensibile alle vibrazioni, sarebbe perfetto se si potesse tarare

### ⭐⭐⭐⭐ 







  
    Ligero y práctico
  
  

*by J***O on Reviewed in Spain on 6 April 2023*

Es compatible con muchas estaciones de alarma. Pero recomiendo ver las indicaciones del fabricante. A mi me están funcionado bien para una eray 3000.

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**Shop now:** [https://www.desertcart.jp/products/553565673-wolfguard-wolf-guard-433mhz-mc-03b-door-window-sensor-home](https://www.desertcart.jp/products/553565673-wolfguard-wolf-guard-433mhz-mc-03b-door-window-sensor-home)

---

*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-02-01*