These are GPS Trackers that use rechargeable or replaceable batteries. With reduced location reporting, we can offer trackers with long life batteries. These are great on assets like construction trailers, lights and other job site equipment that is not expected to move. But, if it does, you want to know about it. These trackers are designed to be tough enough to attach to a bobcat or similar equipment. Operating out in the tundra? Choose from 2G, 3G and Satellite devices.