DEI Stinger Double Guard 504

I bought this model 504 sensor. It is dual zone. However it has only 1 pot to adjust and 1 led. How is it that 1 pot can adjust 2 zones? This is new to me. Anyone knows the answer?

sure.... you're adjusting both fields equivalently

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Kevin Gerry
Certified Electronics Technician
MECP First Class Installer

Owner/Installer
Classic Car Audio
since 1979

I heard From DEI that the pre-warn is anything of duration 0.8 seconds. Anything over 0.8 seconds duration goes to trip the full alarm.

I guess I cannot adjust the two zones independently, so I will use my original idea: cut off the full-warn and just use the pre-warn (since I have another sensor for full-warn that works ok).

If the 504D receives a light impact, the LED will light up briefly and send out a 0.8 sec pulse to the alarm triggering the warn-away. If the 504D receives a hard impact, the LED will light up for 2 seconds and send a 2 sec pulse to the alarm, triggering the alarm. The single adjustment knob adjusts both sensivities equally.

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Friends Don't Let Friends Bump Stock.

So there's really no way to make the pre-warn more sensitive than the full-alarm if I wanted to use this 504D only. Right?

Nope. If you set the warn zone to sensitivy, it also makes the trigger really sensitive. The only sure fire way is to use 2 504D's and only use the green on one and blue of the other. That way 1 is warn only, and the other is trigger only.

What kind of vehicle do you have and what are you trying to protect by the way? Rims? Stereo?

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Friends Don't Let Friends Bump Stock.

Thats what I currently did. A full alarm with remote start (Omegamax with Echomax) and this DEI's sensor and a Bulldog 2 zone sensor that isnt performing to my satisfaction. I have a Highlander 03 with a few extra features like alloy wheels etc and am trying to protect my Alpine Head unit (9811), Alpine Amp (V12 MRV-F540), 4 Alpine speakers, Alpine MRD-M500 for the sub and an Alpine SBR-122CR subwoofer box preloaded wtih SWR-1241D dual coil speaker and my Streetwires high quality RCA's for all signal inputs/outputs. I already had my glass broken into before but nothing stolen as my older alarm went off scaring the sh*t of the 2 guys (I have them on camera) who tried to steal stuff. The only problem with my older alarm was it had no shock sensor so the guys succeeded in breaking the glass with no warning. (The picture I have on camera does not show their faces though or else I would have given it to the cops who could have greeted them at their home/s)

Have you considered a proximity sensor like the DEI 508D? It has 2 stages like the shock sensor, but the fields are independently adjustable. The sensor creates a bubble in the car and depending on how sensitive you set it, if someone walks by, it'll give off a warning. If someone were to reach into an open window, the alarm would trigger.

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Friends Don't Let Friends Bump Stock.

I have the Omega's radar-sensor that also creates the bubble in the car like you mentionned, with 2 zones, but I did not hook it up yet as I could not find a suitable place that is unobstructing anything in my vehicle. I thought of putting it under the center console between the seats, but then it would be upside down.

The DEI 508D seemms more interesting as I just read on a reseller's site that it creates a field around the vehicle. Thanks for pointing me in a good direction. After a little more research, I think I will get that.

Well the internet is great and misleading at times if you believe everything you read. I just saw another reseller mentionning that the 508D is an RF field sensor detecting within the vehicle. I guess I will now read what DEI themselves have to say.

I've used the 508D on a few cars as well as my personal vehicles, and it works quite well. The 508D will penetrate most plastics and windows, but will not go through metals and seats. The only down fall is that they're sorta termpermental w/ weather changes. If it's really hot outside, the "bubble" will expand. If it's really cold outside, the bubble will shrink. Also, rain trickling down the windshield can set off the warning. I recommend putting a toggle switch on either the warning or the ground, so you can temporarily turn off the sensor.

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Friends Don't Let Friends Bump Stock.

Sounds like a good plan. Also do you recommend any good perimeter sensors, the kind that go off if someone touches the body of the car of come within a few inches from it?
Thanks.