










🔐 Stay one step ahead—secure smarter, live freer.
The Wolf-Guard MC-03B is a compact, battery-powered 433MHz door/window sensor designed for home security systems. Featuring a long-lasting CR2032 lithium battery with over 2 years of life, an 80-meter wireless range, and easy peel-and-stick installation, it instantly alerts your control host when doors or windows open beyond 15mm. Crafted from durable ABS, it offers reliable, discreet protection for your home or office.





| Battery description | Lithium |
| Number of batteries | 1 CR2 batteries required. (included) |
| Voltage | 3 Volts |
| Control method | Remote |
| Mounting type | Wall Mount |
| Maximum range | 80 Metres |
| Sensor technology | Contact Sensor |
| UPC | 711005689656 |
| Manufacturer | ChiTongDa |
| Part Number | MC-03B-100 |
| Product Dimensions | 8 x 3 x 11 cm; 30 g |
| Batteries | 1 CR2 batteries required. (included) |
| Item model number | Door sensor |
| Material | ABS |
| Shape | Rectangular |
| Item Package Quantity | 1 |
| Usage | Home alarm systems |
| Batteries included? | Yes |
| Batteries Required? | Yes |
| Battery Cell Type | Lithium Metal |
| Item Weight | 30 g |
T**N
Feel a lot safer now as I live alone
Easy to install, very satisfied
A**S
Check product for functionality before fitting
This replacement item worked at last, had 2 faulty ones before!
G**P
Good
Good addition to my system
D**.
well made
well made
J**R
As advertised by seller
Not fitted yet
Trustpilot
2 weeks ago
4 days ago