trackers wouldn't work
I have GPS trackers in my trucks, but none of the systems I checked out would work on a saw. They all require batteries, and to find a remotely located device, you would have to have a subscription to a tracking service, which would cost $$ every month.
Furthermore, none of the trackers could be tolerated or hidden on a saw, and would be stupidly easy to defeat if they were present on the saw. Not to mention the futility of attaching a lawn mower battery and a 1/2 pound tracking device, along with all the wires to a chainsaw. You could probably pay for the missing chainsaws with the savings on labor you would incur toting all the batteries around.
I used to have some missing equipment and break-ins, and I installed a good security system along with an extensive camera system, as well as the GPS tracking units in all the trucks. I take the time to make sure that all employees know that they are being watched, even when they are not watched. Curiously, production went up, thefts went down, and false accusations by me went WAY down. Employee morale went UP, especially when I got rid of the loser employees !