The two most widely used glass break sensors that are retailed in today’s market are shock sensors & acoustical sensors (audio discriminators).
Shock sensors are a perimeter detection device that are used to secure a single window. They are applied directly to the glass they are protecting by a special type of adhesive tape or a small suction cup device & are triggered by vibrations coming from the glass being struck or being tampered with.
Almost all glass break sensors of this type have several settings that allows you to adjust or regulate how sensitive you need or want the shock sensor to be.
The perimeter detection device that commonly secures a home’s windows are magnetic switch sensors & they are much less expensive than glass break shock sensors.
Although a shock sensor in my opinion is the most effective device you can use to electronically secure any hidden windows you may have in your home.
The majority of hidden windows that people have in their homes are basement windows.
This is mainly due to most basement windows being smaller in size & they are generally located close to the ground.
My basement window security web page explains how hidden windows allow some criminals to defeat magnetic switch & glass break acoustical sensors when breaking in.
An audio sensor will not only prevent an intruder from breaking in, it would in all likelihood have the intruder immediately move on in search for an easier home to target.
This is due to two things that an intruder quickly identifies when they see this glass break sensor attached to a window they are approaching. They realize if they tamper with the window in any way they will trigger the sensor & that the home is being electronically secured with an alarm system.
Any windows you may have that are hidden from view, needs to be secured with a higher level of physical and/or electronic security.
This security advice is very important, as the windows in your home that have the highest potential of being targeted by criminals, are those that cannot be seen from a neighbor’s home or a public area.
Audio Glass Break Sensors are triggered by the acoustical sound
wave of breaking glass. They are also the most popular & most cost
effective glass break detectors sold, as a single detector is capable of
protecting multiple windows within the sensors range.
Oftentimes these detectors are strategically located on a wall or ceiling in order to secure as many windows as possible with a single detector.
Some of these audio sensors are specifically designed to be located on a ceiling, as they have a 360 degree pickup pattern for detecting the acoustical sound of glass breaking.
While you may see some glass break sensors are rated to detect glass breaking up to 50 feet (15 meters) away, it is important to understand that this is only if there is nothing between the glass & the sensor.
When walls, doors & other things are standing between them, the rated distance of the sensor is significantly reduced.
The only way to know if an acoustical sensor is capable of securing certain windows, is to use a glass break simulator or tester. This device needs to be sounded next to each window to see if it will trigger the sensor.
If you are able to acquire a simulator to test the effectiveness of your glass break sensors, you will want to ensure the simulator is placed between the window covering when it is closed & the glass prior to sounding it. Certain window coverings like heavy drapes can significantly reduce the distance of how far away a glass break detector has to be from the window.
Audio Sensors can repeatedly trigger an alarm condition in certain home environments by mistakenly identifying certain high pitched sounds for the acoustical sound of breaking glass.
If you find yourself experiencing such a problem with any glass break detectors in your home, there are a few solutions that can be implemented to fix this false alarm problem. The first thing you need to do is identify what specific sound(s) is causing your sensor to trigger a false alarm.
Once you have identified what sound in your home is causing your sensor to trigger an alarm condition, you may be able to stop it from happening or possibly move it outside of the sensor's range.
If this would create a problem for you or your family, you may want to consider creating a security zone that will deactivate the glass break sensor when you are home.
The sound that is causing the sensor to trigger a false alarm in almost all cases comes from some type of family activity happening in the home. When your residence is unoccupied the false alarm problem should not exist allowing the sensor to be fully activated when no one is home.
This solution should only be implemented if your acoustical detectors are being used as interior backup sensors. This is where each accessible window in your home is being secured with a perimeter detection device like a magnetic switch sensor.
The final solution for this false alarm issue will certainly fix the problem, but will unfortunately cost you some money to implement. This measure would require you to replace the acoustical sensor that is triggering the false alarms with a dual technology audio sensor.
Dual Technology Glass Break Sensors were specifically designed to be used in challenging environments where false alarms are repeatedly being triggered.
Dual technology sensors requires two different technologies & they would need to be triggered either at the exact same time or in a precise sequence before the sensor can activate an alarm condition.
The following dual technology audio sensor will require both technologies to be triggered in a precise sequence. One technology will detect the acoustical sound of breaking glass while the other one will detect vibrations of low frequency sound pressure waves.
A low frequency compression wave is caused by the inward flex of a window just prior to it breaking. This is followed by the acoustical sound of breaking glass.
If no compression wave is detected, the acoustical sound of breaking glass alone will not trigger an alarm condition.
If you are experiencing repeated false alarms with any PIR (Passive Infrared) motion sensors in your home, you will also find information on dual technology motion detectors on my dual technology sensors web page.
I sincerely hope the information on this glass break sensors web page has been in some way helpful & beneficial for you. You may want to consider bookmarking this site as new & updated content is uploaded weakly.
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