Directed Electronics 504D Double Guard Stinger Shock Sensor

Added additional sensor to my Viper car alarm. Stinger sensor works great and very easy to install & adjust.

Worked great and you can splice it to your origional shock sensor. To the guy who said its not sensitive enough is lying, you have to turn the dial clock wise to max it out so now if you even flick my window it chirps.Remember, it DEPENDS WHERE YOU PUT IT!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!Wire it to loose wire somewhere and 1 on the steering column, goodluck breaking in my truck quietly.

Besides being sometimes too sensitive, this baby works awesome.! If you live in a apartment complex or work where lots of people walk by your car it will go off a lot, but it will protect a truck or convertible from people reaching in.

I like to say this is agreat add on too your alarm its easy to install if you a little knowledge on eletrical I installed mine in 5 minutes it works great just what i needed to keep the theives away

the stew that you adjust was broken and laying in side I order another one as I had car apart and the second on works as it should well the second one worked three weeks now will not Let alarm arm I disconnected it and now the alarm arm this things must be poorly made I am mad sick of messing with it junk

Added this to an existing one basically a piggy back mounted in another location and it does its job very well

Used with my Viper 3203 2-way alarm and keyless entry.Attaching it to my viper alarm took all of 3 seconds, as the device is plug and play. Holding the sensor to the frame of the car and testing it revealed that it works great, with adjustable sensitivity.The only downside to this product is that it is hard to find a good place to mount it where it will be able to sense any impacts or disturbances... It only comes with zip ties for mounting but it would have been nice to have some strong double sided tape or something.Overall product works fantastic, if you can get it mounted so that it will work.

These are pretty much universal and can be used for any project if you put your mind to it. You can adjust the sensitivity via set screw inside the case. Just pop off the cover with a flat head screw driver and adjusti it to desired setting. The wires are for negative triggered alarms but can also be used for positive triggered alarms if you wire it to a 4 pin relay.