Want to test a glass breaking sensor - Use Star Trek Into Darkness

[sjht]

We were watching that movie in our dedicated theater which has a glass sensor in the back of the room. Happen to have my Space app running and during the many big fight scenes the glass sensor went "not secure". They have some type of high pitch effects (phaser fire) going on which drove it crazy. LOL.

 

[RAL]

What kind of glass break detectors do you have?

 

[sjht]

Basic GE/Interlogix wireless models with a HAI OP2. SJ

 

[LarrylLix]

I only used DSC dual element units years back. They didn't respond to noises like that as they needed a definite sequence of a thump and then high frequency noise.
 
However I was using a circular saw once right close to one detector and the wood I cut hit the floor and then saw blade rang, The siren almost made me cut my leg off as I was standing about six feet (2m) from the siren in the ducts. My system is much improved now as my neighbours would be here asking what a stranger was doing in the neighbourhood.

 

[Del91574]

Siren in the ducts? Wow. That wouldn't fly here.
 
That said, from a few college dorms, we've discovered that certain Metallica and Pantera albums work very well for testing both GBD's and audio discriminators. Dubstep and house don't really seem to cut it.

 

[LarrylLix]

Sirens in the return air is quite common here. They have to be in a dead zone though so they don't block air passage and fill up with dust. Pretty scary when they go off not having any direction to locate them from. Bad maintenance idea but harder to defeat.

 

[Del91574]

Sirens in the return air is quite common here. They have to be in a dead zone though so they don't block air passage and fill up with dust. Pretty scary when they go off not having any direction to locate them from. Bad maintenance idea but harder to defeat.

And a phenomenally bad idea. At least in the US this would be a huge code violation. The units aren't typically designed for plenum installation, so think about where you guys are installing them and the cable run to get to them. We may have plenum rated cable and wiring methods, but not a single part of a siren/speaker assembly is plenum rated and it's being installed within a system that doesn't have provisions/requirements to be shut down on fire alarm, so any fumes will be spread even further.
 
Just saying that even though it may be commonplace in your locale, it may only be due to poor adopted installation practices or considerations (or lack thereof).  I can't see where this is a good idea or where a properly installed flush speaker is any different or more susceptible to defeat.