Wireless Burglar Alarm Door Sensor Magnetic Contact Detector for 315MHz and 433MHz Systems

This wireless magnetic door sensor offers a straightforward way to monitor entry points in your home, garage, or office. Designed to integrate with many existing alarm systems, it uses magnetic contact detection to alert you when a door or window opens. With a choice of 315MHz or 433MHz frequency, it provides flexibility for compatibility with various control panels. The durable ABS plastic construction ensures it withstands regular use, while the included mounting hardware makes installation simple.

Features and Construction

Built around a proven magnetic reed switch, this sensor is engineered for reliability in everyday security applications. Its compact form factor and black finish help it blend into most door and window frames.

Material and Build

Constructed from robust ABS plastic, the sensor housing is lightweight yet resistant to impacts and minor knocks. The magnetic contacts are sealed inside to protect against dust and moisture ingress during normal indoor use.

Size and Practical Fit

The sensor unit is designed to be small enough for discreet placement on standard door and window frames. The supplied magnet mounts on the moving part, and the recommended gap between sensor and magnet is less than 10mm for reliable detection.

Uses and Placement

This sensor is well suited for monitoring entry points in a variety of settings where a wireless link to an alarm panel is needed. It works with both 315MHz and 433MHz receivers.

Event or Professional Use

For installers equipping offices or small commercial premises, this sensor provides a cost-effective way to add multiple detection points without running cables. The two frequency options help match existing systems.

Everyday Home Use

Householders can fit it on front or back doors, garage side doors, or ground-floor windows to gain visibility of when these points are opened. The wireless nature means no drilling for wires, simplifying retrofitting to homes.

Benefits and Buying Value

Having a simple magnetic sensor as part of a security setup gives immediate awareness of entry activity. This model offers practical advantages for those expanding a system.

Reuse and Low Maintenance

Once installed, the sensor requires no regular maintenance beyond an occasional check of the mounting and battery condition (where applicable). The ABS housing resists yellowing and cracking over time.

Why Choose This Product

With its choice of 315MHz or 433MHz frequency, this sensor helps avoid compatibility mismatches. The inclusion of mounting hardware and the compact black design make it a straightforward addition to most residential or office alarm systems.