433MHz Wireless Door Window Contact Sensor

Add reliable entry-point monitoring to your alarm setup with this 433MHz door window sensor. When connected to a compatible security host, it sends an alarm signal as soon as a door or window is opened during a break-in.

Installation is simple thanks to the pre-installed battery, and the compact contact design fits all types of doors and windows. It is made for home entry monitoring, intrusion alerts, and expanding whole-home security coverage.

This sensor uses 433MHz eV1527 wireless parameters and works with a security host or panel. It is not a WiFi sensor, and you can customize its name and modes in the security panel for easier system management.

Why You'll Want It

✅ Get immediate intrusion alerts so you can react faster to door or window opening.

✅ Expand your alarm system easily with wireless 433MHz host compatibility.

✅ Install faster right away with the battery already pre-installed.

✅ Cover more entry points confidently because it fits all types of doors and windows.

✅ Reduce tampering risk with the built-in anti-dismantling function.

✅ Manage your system more clearly by customizing sensor names and modes in the panel.

Easy two-piece design mounts neatly on doors and windows.

See the sensor parts clearly for simple placement.

Compact size blends into your entry points.

Covers different door and window setups around your home.

Matches security panel setups for expanded protection.

Clear alert example shows instant notification support.

Installation view highlights fast setup with battery already installed.

Anti-dismantling protection adds another layer of security.

Add this door window sensor to your security host for stronger home protection.