Explanation of Flexguard Sensors
OK. Flexguard. Do you guys know what Flexguard means? It means-- Like the FG, and-- [INAUDIBLE] it won't break. Flexguard, what's up? [LAUGHTER] OK, so you don't know it means. [LAUGHTER] So Flexguard is-- back in the old days, glass break sensors were very simple. They were called acoustical glass break sensors. They basically were a device with a microphone that listened for a loud noise. So any loud noise would cause them to trip. And they caused lots of false alarms, and everybody hated them. And then they had, also, shock sensors that you actually mount directly to the window. And then if somebody hits the window and shocks it enough, it's an inertia-style shock sensor, then it would trip. But those, if it thunder's really loud, it can shake the windows enough to set those off. So again, false alarms. So they came out with the Flexguard, which is basically a dual-frequency detecting device. So it listens for two things, the low frequency sound of glass flexing when you strike it, and then the high frequency sound of the sound it makes when it breaks when it flexes beyond its capability and actually shatters. So that's what we talk about when we talk about Flexguard. It's really cool to watch somebody break glass on one of those super-slow-motion things, because it is like-- Yeah. So that low-frequency sound, you hear it when I go like this, but there's actually low-frequency sound that you don't hear that's going on when that happens, as well. And that's what this is supposed to be picking up on. Wait, so it's not the thud of an object hitting the glass, it's just like glass breaking, so-- Well, you hitting the glass makes a thud that you can hear, but it also makes things happen that you can't hear. OK. That this can. Is the way it's meant to work. Well, usually when I'm writing about it in a fax I've been saying it must hear the low thud sound of something hitting the glass, so should I start wording that differently? No, I wouldn't. Because if they do it right, it is going to make a thud that they hear, and that's all they need.