Hi all can anyone help me choice a tracking device for my skid steer. My Insurance company wont insure it unless it is fitted with such a device due to it being left unattended at the site . I have heard of both Boomerang and Lojack has anyone had either and your experience. I also have been told that the signal output from the device can be disrupted with the use of a High power GPS cellular blocker-jammer . Thanks for your time and consideration Plowbear