Doesn't matter what it is, I had having things stolen from me.
Regarding security devices, avoid 4 digit keycodes like the plague! If it's not 6 or more digits, it's no good. As far as dirty keypads. All numbers should be dirty. False numbers, should be even dirtier than the right ones. (for the logic "Dirtiest=most used" Meaning they'd focus on the dirtiest numbers)
As far as universal keys, regular automobiles have universal keys. Only 3 different keys are used for 2010 Honda Accords. Only 2 different types of keys are used for 2009 Ford F150s.
And personally, you can rig the ignition system to jeopardize itself if it's not jumped properly. Just google ways on how to do it. It'll create a $1,400-7,000 repair. However, It'll save you from losing that $250,000+ machine. Just change what you did to the ignition system prior to your operators getting in the cab. (And make sure none of your employees see what you did, for added security)
Just my 2 cents.
In my car, I jury rig the transmission and breaks. (I have a way of linking the two) Somone hotwires my car, instant they start going above 35MPH, breaks go out, and the transmission goes out.
Insurance will pay me for my stolen, destroyed vehicle, and the guy responsible feels my pain from having my car stolen. And best of all, it's legal. Because there are no state, or federal laws that say you can't jury rig your own car to do the above. Because it's the owners problem. Even had a Lawyer discuss it with me. But you'd BETTER know what you're doing.
Legal, and a win-win. I just remember to change my changes prior to driving myself. (And NEVER allow anyone else but myself operate my car, unless I say otherwise, and change what I did prior to lending it if eveR)
Mechanics, when they worked on my transmission, the noticed some "wierd stuff" with my transmission, but didn't get what the alterations did.
Just some thoughts...
OH, and another home-made anti theft system award, goes to my neighbor. If you try and hotwire his truck, there is a 9mm rd placed in a certain spot, where when you break in it to cross the wires, you'll short the box the 9mm rd is in, and said 9mm will shoot into a 5'6'' (average height) mans neck. (where it'd be as if he was leaning over to hotwire it, although, it is seriously extreme because if something goes wrong while driving, he'll get a 9mm in his gut, but hey, if you got a $67,000 truck, you'd take more measures)
Another neighbor, further down the road. He's got a built in tazer in the seat. Embedded into the pleather interior. If you don't know where to look for it, you get a tazer to shoot into your SPINE (literally, it shoots darts) so possible spinal damage on top of probably messing up your nervous system from the immediate shock. He flips a "switch" he made in a certain part of the car prior to getting in the drivers seat each morning. (and everytime he plans on driving his car) when he's not driving it, it's switched to "on" and it works...
Just another idea of an anti-theft device. Your imagination, and creativity, and mechanical ability, are the only limits.
In my neighborhood, people are tired of having things stolen from them.
