Name: Wolf-Guard 433MHz MC-03B Door Window Sensor for Home Guard System,Power Switc...
Brand: Wolf-guard
SKU: 169038667
Price: 45.23 PAB
Availability: InStock
Rating: 4.571428571428571 (7 reviews)

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Description

🔐 Stay a step ahead—secure smarter, live safer.

SEAMLESS COMPATIBILITY - Works flawlessly with most home alarm systems for instant alerts.
SLEEK DISCREET DESIGN - Slim, rectangular form factor blends into any door or window frame.
ULTRA LONG BATTERY LIFE - Over 2 years of uninterrupted protection with a single CR2032 battery.
PRECISION ALERT SENSITIVITY - Triggers alarm within 15mm of door/window opening—never miss a breach.
EFFORTLESS PEEL STICK INSTALLATION - No tools, no hassle—secure your home in seconds.

The Wolf-Guard 433MHz MC-03B Door Window Sensor is a compact, battery-powered contact sensor designed for home security systems. Featuring a long-lasting CR2032 battery with over 2 years of life, an 80-meter wireless range, and sensitive detection within 15mm of door/window movement, it offers easy peel-and-stick installation and broad compatibility with various alarm control hosts. Ideal for professionals seeking reliable, low-maintenance home protection.

Specifications

ASIN	B077BX5NZZ
Battery Description	CR2 Battery
Battery description	CR2 Battery
Best Sellers Rank	259,433 in DIY & Tools ( See Top 100 in DIY & Tools ) 194 in Home Security Door & Window Sensors
Brand	WOLF-GUARD
Colour	White
Compatible Devices	Various
Compatible devices	Various
Control Method	Remote
Country of Origin	China
Customer Reviews	3.9 out of 5 stars 96 Reviews
Included Components	Door magnet two parts, two adhesive tapes
Item Dimensions L x W x H	8L x 3W x 11H centimetres
Item Weight	0.03 Kilograms
Manufacturer	ChiTongDa
Maximum Range	80 Metres
Model Number	Door sensor
Mounting Type	Wall Mount
Number of Batteries	1 CR2 batteries required. (included)
Part Number	MC-03B-100
Power source	Battery Powered
Product dimensions	8L x 3W x 11H centimetres
Sensor Technology	Contact Sensor
Shape	Rectangular
Size	Slender
UPC	711005689656
Voltage	3 Volts

Reviews

S**Y

Great find

Great bit of kit, working well

22.11.2025

T**N

Feel a lot safer now as I live alone

Easy to install, very satisfied

8.06.2024

D**G

battery

Bought system aug 2025 seems good and does the job but 2 of the window sensors flatten battery in a week or less. have tried to contact customer services but they dont contact you

18.02.2026

A**S

Check product for functionality before fitting

This replacement item worked at last, had 2 faulty ones before!

15.02.2023

G**P

Good

Good addition to my system

3.08.2022

D**.

well made

10.11.2019

J**R

As advertised by seller

Not fitted yet

24.06.2023

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Trustpilot

TrustScore 4.5 | 7,300+ reviews

Vikram D.

The MOLLE sheath is of exceptional quality. Very happy with my purchase.

2 weeks ago

Fatima A.

Best international shipping I've ever tried. Worth every penny!

3 days ago

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