This is my personal opinion on the product amcrest professional grade portable gps tracker for highaccuracy.
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As see in this video, this product is a clever tracking that is integrated with online software. With this the exact places the has been, and at what times. show the points on a map, or list them in a grid.
Besides the location data an set up "alerts" which watch certain unusual activity. example, have an if the goes "Over-speed" on a freeway, or if it suddenly stops (like perhaps, being in a crash.)
Nits: I thought the was pretty easy to use, but some parts seemed to be a little on the "clunky" In particular, setting up the was cumbersome that I would have wished. reason, the not display until I hovered the cursor the box. once I figured that out, it worked better.
So all in I this device well. It did a great job of monitoring as he went on a long bike ride. It also spotted when that person "Overspeed" on the whilst driving back home. I think if have a critical to moving vehicle, will find the monthly charge worthwhile.
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