Directed Electronics 479V Viper Responder Transmitter

I have run this alarm on my Expedition for the last 4 years. It is true that these remotes require some extra care, they provide you with a wealth of knowledge about your vehicle's situation while you are indoors.

Compatible only with top of the line D.E.I. alarms (Viper included). This 2 WAY remote let's me know that commands I have sent have been received. It alleviates a lot of guesswork. At a glance, I know if my doors are locked/unlocked, if the car is running (remote start) or not. If the alarm is triggered, it even shows me the zone that was triggered when the alarm was tripped (it actually shows which door/window has been opened/broken, or if the car was hit).

I too have bought replacement remotes for this alram, but I knew what I was getting into when I bought it from the start.

For those of you who don't need the 2-way function, its important to know that you can program one-way remotes (much less expensive) to work with the alarm brain...Read more

I Purchased the DEI Viper 791vx security system. I did have it Professionally installed into my 94 Ford Mustang Convertible. I have had the Viper 791vx for one year and three months. First of all if you decide to purchase the Viper 791vx make sure you choose the right professional installer and also figure out if it's in your best interest financially before you purchase the security system. Now what I mean about the right installer is some companies do a better job with installing certain products than others. So if you get a certified installer like they all say they are. With a product that's a bit technical, most (now I'm not saying all) would have a difficult time trying to figure out how to install your product. By messing around with your wiring and other components in your car. You wouldn't know what could get shorted out, crimped, unhooked or damaged in some way.

I do know that installing the Viper 791vx security system is a big job. If you happen to purchase the...Read more

this transmitter was a replacement for me . I was able to program the transmitter with out any difficulty. I read the instruction that came with the devcie.