Are Window Sensors Worth It? Here's When They Matter Most

Cameras get the attention, but window sensors quietly close a real gap. Here's when they're worth adding.

What a sensor does that a camera doesn't

A camera records; a sensor alerts the instant an entry point opens, even before anyone steps into camera view — useful for windows a camera may not fully cover.

Ground-floor windows matter most

Any ground-floor window, especially one facing away from the street or a neighbor's line of sight, benefits most from a sensor.

They're one of the cheapest security upgrades

Sensor kits are inexpensive relative to cameras and cover multiple entry points for a modest cost, making them a strong value add.

Combine with a camera, don't replace one

Sensors and cameras solve different problems — a sensor alerts you something opened, a camera shows you who and what happened.

Where to skip them

Upper-floor windows with no easy exterior access (no balcony, ladder point, or low roofline) are lower priority than ground-floor ones.