Types of glass break sensors
There are two basic types of glass break detectors that work in very different ways: acoustic sensors and shock sensors. Here is a quick overview of the advantages and disadvantages of each type of glass break sensor:
- Acoustic glass break sensors: Acoustic sensors monitor a larger space for the specific frequency emitted by breaking glass. The most significant benefit of these sensors is that one sensor can monitor multiple windows within their range. Frontpoint sensors, for example, can monitor up to 20 feet in any direction. The only downside to acoustic glass break detectors is they’re not as accurate as shock sensors. Some noises are similar enough to the sound of breaking glass that you might get occasional false alarms.
- Shock sensor glass break detectors: These detectors are placed on the glass so they can detect a direct shock to a window. Although they have a lower chance of false alarms, they require one sensor per window, so you’ll have to spend a little more money buying multiples.
Glass break detectors vs. window sensors
Window sensors and glass break detectors perform very different functions, and you’ll want both to ensure your home is truly secure from break-ins. Window sensors can only determine whether or not a window is opened. If a savvy burglar notices a window sensor on the window, they could break the glass instead of trying to open the window.
However, if you install glass break detectors to back up your window sensors, you’re protecting your windows from every intrusion method.