Directed Electronics Install essentials Dual Zone Motion Sensor 508d

I have a 15 Sierra that’s in the hood. Windows been broke twice. So I upgraded viper system with tilt, glass break, 2 dual shock sensors and the 508D proximity sensor. 508d is the key to complete an alarm system to me. But it’s useless if you don’t adjust it correctly. Mine is perfect try an look in my window it chirps. Windows open reach in it chirps depending on how far you reach in it goes full alarm. My issues was I placed it center line directly on top of my audio amp. So when I tilt the rear seat up it’s okay and fine. But when I let the seat down it unknowingly crushed my first 508d. Sucked but it was my fault. But I made the decision cause the wire it came with tan short. So I kept the old wiring from the 1st sensors and extended the wiring when the second sensor came in. So now it can slide forward where as to not be crushed by the seat up or down. My only real con about this item is it’s ugly. This item would be a 10/10 if it was somehow not ugly lol. But it is a must have. Took about 2hrs of adjusting and testing to get it perfectly set. But I’m a perfectionist so I enjoy the challenge. Will buy again if this breaks or if install another security system.

I have a soft-door HMMWV that I wanted to provide at least some security. Put this on the roof, pointed it the direction the instructions told me to (and connected to a Viper car alarm), and it worked perfectly out of the box. If I get close to the door, it gives me the warn away, and if I open the door the alarm goes off. Perfect.

As I have learned in the past few days, Viper alarms, and apparently all other alarm systems, do not come equipped with a proximity sensor. When I had my first Viper installed on a previous Eclipse GT, the guys at Audio Express in Raleigh, NC, installed a proximity sensor on it. Because someone attempted to gain access to my car, I can only assume that I explained this to them and while it may or may not have been an additional charge, I was not asked if I wanted it so I never questioned what the particular features were other than arm & disarming it. Now that I have an Eclipse Spyder, it is absolutely imperative that a motion/proximity sensor is added to it since to gain access inside, no one would have to break a window: they could simply cut the top open. While it explained to me a couple days ago that the only people who should be concerned with this feature are those who have convertibles or Jeeps since Jeeps are exposed anyway, I would still encourage anyone with a hardtop to get this if you have expensive upgrades to your car. Better to have it and not need it than to need it and not have it.

PROS: this sensor does the job no doubt. If you get anywhere near the vehicle it will let you know that the vehicle is protected with a warning chirp. It also sends a signal to my remote that tells me that the warning signal has been executed. NiceCONS: It's not really easy to adjust. There is two screws for tuning and one says factory only and the other is for the users discretion. Now if you adjust it and you feel happy with it, don't get to comfortable because it will change on you. Youu ha e to keep it where you can get to it or else you'll be in a dual tone sensor nightmare. It's really hard to get it to where it will safely ward off criminals and at the same time not be so sensitive that a loud car or helicopter will not set it off. There is a fine line. So I found myself putting it in valet mode way to much because of the two work I g against each other with motion and sound. So I nasi ally didn't have an alarm when I was in a busy or loud area. Like a show or concert or something. If the alarm goes off to much while your away then your taking a chance on getting stuck due to the battery dying from the headlights and siren going off. Not to mention it's very annoying at my house. I live on a dead end street where cars turn around frequently and it's always going off. So now I don't use it until I can figure out how to make it work right. It's been a real pain in the ass. So that's my story. The directions were non existent. So that was out the window. Oh well

It worked great for a viper alarm, yet since I have a tahoe I want to run the wire under the carpet and place the sensor under the back seats which would be the center of the vehichle. The cord is way too short for that. Until I extend it, I have the device under my center console and works great, but it barely works if someone is passing by the trunk area, sometimes it detects it and sometimes does not. Can get annoying though if there are stray cats around and walk underneath the vehichle. It will set the alarm off depending how the sensitivity is set.

Wonderful little device. Installed this with a viper 5901 but used gwa (-) instead so it doesn't remained powered all the time. You have to adjust the outer first and then the inner. I did a test run by just placing it on top of my center console and worked fine however when placed in its permanent position under the console it seemed as though the distance of the zone was weakened but nothing re-adjusting couldn't fix to compensate for that. Adjustment screws however could have been made of a more sturdy plastic.I stripped my screw heads trying to adjust it and had to open it to adust them, i also found it it needs the back plate to function properly took me an hour of pondering to and gave up thinking I broke it.If you remove it prepare to be frustrated cause you wont get it to work.once again dont disassemble while adjust it.Very fast shipping BTW ,would purchase again.