There are some cell phone based lojack systems that are very good out there. They are expensive but work.
"LoJack" is a very poor quality tracking system. Their successful recovery rate is extremely low. There is a company called CalAmp
CalAmp - Products that is the only public company that actually owns the GPS tracking technology. All others either buy from them or pay a license fee to them for their products. They are beginning to sell their products to companies and equipment dealers and those products are very, very good. They use a combination of satellite and cell phone networks to setup a "geo-fence" around your piece of equipment when you set it. If your piece of equipment moves outside the "fence" you establish you will receive either a call, email, text message that not only tells you that your piece of equipment is being moved but also exactly where it is, what direction it is moving and at exactly what speed it is moving. They even have motion sensors built in that can contact you as someone is just trying to tamper with or steal your equipment.
This is the same technology that some companies use on high risk credit people when they sell them a car. If need be, the lender can shut off the vehicle, prevent the car from being started again, show a repo company exactly where the vehicle is sitting (even uses MS Earth to show physical location and is precise enough to not only show on what floor of a parking garage the car is parked but in what parking space). With this technology on your equipment you have over a 90% chance of catching the thief
before they even get away with your piece of equipment.
I've seen this technology demonstrated and compared to LoJack. It's about like comparing two cups with a string between them to a fiber optic phone link. I would assume that this will be available at most equipment and ag dealers within 5 years. Several manufacturers are looking into making this standard equipment on their higher priced items. Let's face it, with a low-boy trailer and a chop shop setup, your tractor or other equipment can not only be stolen easily but parted out and sold in pieces the next day before you ever notice it is gone. Obviously I
hate thieves! I'm glad to see this technology emerging. In today's economy it can be quite profitable for crooks to snag a load of equipment and have the parts sold the next day.