Glassbreak Detectors For Home Burglar Alarm Systems

Glassbreak Detectors For Alarms, And Their Effectiveness:

1. Employs both of these methods;
2. Is able to detect sound up to 25 feet away;
3. Is effective with plate, laminated, wired or tempered glass.

If you have only one window (that doesn't open) in a room you wish to protect, a "button" or "bug" glassbreak sensor is a more economical option. It is a small shockwave sensor that is placed on the window itself, or at the very least, close to it. They can be less than half the cost of a dual technology glassbreak sensor.

Some installers may have a portable unit that simulates the sound of glass breaking, to test any glassbreak sensors they have installed. You may want to ask the installer for a demonstration.

Above: Coverage Area Of A Typical Wall Or Ceiling-Mounted Glassbreak Detector.

Left: A typical "button" or "bug" style glassbreak detector that can be mounted directly onto glass.

Right: A new type of sensor that combines magnetic window contact and glassbreak sensor capabilities.

Above: A Standard Wall Or Ceiling Mounted Glassbreak Sensor. These are especially effective in protecting many windows at once, in the same room.

Some glassbreak detectors use an "omnidirectional" microphone to detect the sound of breaking glass. Others detect vibrations or shockwaves that are caused by breaking windows, or a door being forced open. The best glassbreak sensors combine these elements, to reduce false alarms caused by perfectly innocent occurances, such as the sound of breaking glass heard on a radio, or a dropped dinner plate or drinking glass. You should insist on having a unit installed that:

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