While I do have faith that a good thief can beat any security system (Oceans 11?).
From the website:
The circuits interrupted by the RAVELCO may vary from application to application. Typically, they would include the electronic fuel or injector pump, the ignition circuit, the starter circuit or even the computer.
Since different vehicles vary how many components are connected, I think it might be slightly more difficult than you see on those videos from the internet, which is a competition kill switch company. It could require 2, 3 or 4 of those jumper wires to be hooked into the correct pins and would certainly slow someone down and make them think again on the spot. Stop them? I don't think that's ever possible. It would certainly take a bit more time than just capturing a key FOB signal and getting into the truck and driving off.
I watched most of the installation and was the customer that asked a lot of questions. Mine is wired to 3 of those components listed. The installation wires are extremely difficult to trace and there is no color code to them. The installer said a lot of their business is actually removing the devices for dealerships and car sale companies after customers trade in or sell a vehicle. He told me that each vehicle is wired differently and that depending on whom the installer is can be wired differently also. It can take him up to 4 hours to remove a system from a vehicle completely, again depending on the installer. My installer was extremely knowledgeable, former military electronics.
I like that this isn't something that can be an override with a computer. A physical kill switch is certainly a great way of just adding in a second level of protection. I guess you could also do a 3rd level and the steering wheel club or brake pedal device. I always thought a fun way to add a 4th level of protection would be interrupting the folding transmission shifter. Put the shifter down and put the table down, and then a switch that disconnects the folding shifter from coming back up. I'd love to see a thief's face with that one once they got the truck started. 5th level of protection is an Air Tag.
I enjoy the discussions on theft protection, since this is a reality for many of us right now. Whichever kill switch or security device you go with, tell everyone on the forum about it. There really is nothing worse than the time we spend finding, modding and maintaining these trucks only to have some **** come along and steal your hard work, costing you thousands. My Ravelco might be an overpriced kill switch, but my living situation needs something more than the factory alarm. Since I often drive into remote areas, I really needed to be confident that the device will work and never leave me stranded. I got quotes on kill switches at alarm shops for about $400. The ravelco was double the price, but I do like the quality installation that was done on my truck. I do mostly all my own work, tapping into electronics on a brand-new truck wasn't something I was willing to start learning and practicing on.