Directed 508D

I picked this up on a whim, but it has come in handy. I can arm my alarm and leave the windows down and I am still protected. It definitely will warn you if get too close, and will set off the full alarm if someone reaches through an open window. It is Sonic's prices that keep me coming back for more.

This tiny box makes the whole difference between an alarm that lets you know your car has been robbed, and one that scares the thief away before he even tries.

Pros:
- Does exactly what you expect: warn-away chirps when someone lingers too close to the car, and full alarm if the interior of the vehicle is penetrated. Ideal for convertibles.

Cons:
- It takes a lot of trial and error before you can get the sensitivity right.
- Very fragile. I damaged one of these while adjusting.

I am really looking forward to the next version of this sensor, to fix the cons.

This is a great starter system if you would like to get a good car alarm without forking alot of cash up front. The only downfall about this alarm is that there are not alot of plug-in-play ports to hook-up accessories such as if you wanted to expand this alarm to add a digital wheel tilt alarm, sensors or any other accessories. If you want a basic alarm system, this is a great one to choose. If your like me and want to add more to it as time progresses, your better off spending a little bit more money and getting the next one up. I have maxed out all my ports and if I want to add more to it then I have to buy a more top of the line alarm to suit my needs. If you want a simple alarm and maybe adding one extra accessory to it then this is the way to go. Great alarm, never had any problems and still going strong. Of course it is...it's Directed! The best car alarm manufacturer on the market!!

this is a great product. not only does it protect the inside of your car, it also senses motion on the outside. the fact that you can set the sensitivity on the inside and out is great. I feel much safer having this product on my car.

I added this sensor to my car and it does everything it says. It works like magic and I feel better now leaving my car outside, even though I know if a thief wants it, he will get it....... but a great product....