DEI Directed Electronics 506T I.T. Audio Sensor

This is a great little sensor. If you're going to bother installing an alarm you might as well add this audio glass break sensor for a few bucks more. It is super simple to install and also very easy to adjust. the sensitivity with just the twist of a knob/screw. It works perfect with DEI alarms like the Viper or Clifford line. I picked one up for my Viper and for a few dollars I have a bit more security. If someone breaks your window, pops the hood, and cuts your power or siren wire then you're out of luck. It's just too easy to do. Shock sensors may or may not pick up the window breaking depending on how its done so this is a little extra insurance. It can zip tie to about anything during installation as it is very small and light weight.

I installed this sensor's mic on the middle upside of the rear glass of my Corolla with the supplied 2 sided tape. The receiver at the trunk so it could be visible when it's opened and therefore easier to calibrate. The microphone picks sounds of highwave frequencies and triggers (-) into the blue wire (you can try hitting a glass bottle with some metal). it's simple, all the work I've to do was running a blue cable from the dash to the trunk. I just installed at back because thieves tend to break the rear door little triangle glass, instead of the larger door glasses, this works for them in many cases without triggering the full alarm, because shock sensor don't always pick 'shocks' from the back of the car when pressed toward using force on the door. Don't spec to see a big glass to be broken!! that will make a lot of noise and vibration to the car, so alarm with be on!!! only desperate theft fall in this category. I recommend this item, it offers more security to your car and all your valued items inside.

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The 506T Audio sensor is an optional sensor i installed for added protection with my compustar alarm. It is used to detect the sound of breaking glass. It was installed in a Cadillac Escalade. The installation was straightforward but i did need to purchase a longer rca cable. I got one from radio shack. I mounted mine on the windshield behind the rear view mirror with the microphone facing the dashboard. The sensor is extremely accurate and can be adjusted to your liking. It can be tested by tapping keys on various windows outside of the car. When it can pick up the keys on the farthest window (usually the rear) you know it has been set properly. It has been working flawlessly for years and luckily no one has broken my windows (knock on wood). If you have an alarm that accepts optional sensors this is a no brainer.

I bought this audio sensor as an added layer of protection for my car. I wasn't sure if it would really live up to its description but I was willing to give it a try. I am glad that I did as it really does add another layer of security. What's great is that you can adjust the sensitivity of the microphone to suit your needs. I live in a highly populated city, so it took some time to find the right balance. Now it works perfectly and it will even give warning chirps if I accidentally tap my keys against the window but not go off when someone drive by with their speakers at max volume. Strongly recommend, especially if you have items you want to protect from 'smash and grab' break-ins.

For DEI alarms, this sensor is plug-n-play. The sensor comes with 2 major components, the audio sensor microphone and the sensor electronics box. The sensor adjustment is done via rotary knob on the electronics box, and there is a red LED for feedback during adjustment. For DEI alarms, the sensor port accepts the harness that is provided in this kit, along with instructions. To test, I would recommend having all windows rolled-up and using a set of car keys to jingle against the exterior of the window. The microphone can be mounted in two different ways. You can drill a 1/2" hole and push the sensor microphone through. Or you can use the provided bracket with 3M 2-way tape. I chose this sensor over the 508D (Field Disturbance) because I am afraid of the large amounts of Hilo rain that we get here (that may cause false trips of the alarm). ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ October 8, 2015 Update I finally got around to installing this sensor (along with the 507M Tilt Sensor). I spliced the two sensor harnesses together, with diode isolation. Both of these sensors (506 and 507M) go into the Sensor 2 port. I tested each sensor individually, and they both work and trigger the Sensor 2 on my alarm. The only dilemma is not sure what to call Sensor 2 on my remote (if this zone is triggered, you can have the 2-way remote say Glass Breakage or Tilt). I drilled a 1/2" hole, which may be a tad bit too big for this sensor (I didn't like the cheesy microphone mount that comes with this). Maybe if you can find a 15/32" drill bit?

I installed this together with an Avital 3100L. The only feasible place to put the microphone was up high on the A pillar. I turned the sensitivity up to the maximum, and no matter how much I rattle my keys against the glass, literally inches away from the microphone, windows rolled up, I can't get this to go off. However, if I shout, it goes off. So, how is this supposed to detect glass breaking, exactly???

Works great! have to fine tune it still, i live next to a fire station and a hospital within 2 blocks so the sirens set the alarm off, had it set to max settings and rain triggered it so it does leave you with peace of mind that your car is safe. plug in and play with Viper 5706V, comes with one harness that you can also connect your shock sensor to. Put it on my dash next to left A pillar. Mic needs to be out in the open to pic up sounds. the tap of a key can set it off, also if you arm the car while youre inside and make ANY noise it goes off. Found out the hard way.