Name: Wolf-Guard 433MHz MC-03B Door Window Sensor
Brand: Wolf-guard
SKU: 169038667
Price: 18.76 GBP
Availability: InStock
Rating: 4.571428571428571 (7 reviews)

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Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

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£18.76

Duties & taxes included

In stock

Sold byAmazon UKDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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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

Common Questions

Are the products genuine and authentic?+

Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

How long does delivery take and is it reliable?+

Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

What is Desertcart? Is it safe to order from?+

Desertcart is an international e-commerce platform operating since 2014. We securely process thousands of orders globally each day. Every product goes through our quality verification process before delivery, and we provide end-to-end order tracking, 24/7 customer support, and a comprehensive returns policy to ensure a safe shopping experience.

How is product pricing calculated?+

Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Anita G.

Good experience, but the tracking updates could be better.

2 months ago

Reema J.

Perfect platform for hard-to-find items. Delivery was prompt.

1 month ago

View all Trustpilot reviews

£18.76

Duties & taxes included

In stock

Sold byAmazon UKDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to UK.

Secure transaction

ProDesertcart PRO

Fast, free shipping, member pricing & priority support.

Join PRO →

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Anjali K.

The product quality is outstanding. Exactly what I needed for my work.

1 month ago

Yusuf A.

Fantastic experience overall. Will recommend to friends and family.

1 month ago

View all Trustpilot reviews

Wolf-Guard 433MHz MC-03B Door Window Sensor

Details

Details

Description

Specifications

Reviews

Common Questions