Yep, its the same one. With a trailer like yours, you can keep all of your tools stored away, and just take what's necessary out to the flight line. Those of us without such luck end up dragging around a large field box.

The reason I changed to this system, is that we have starting stations at our field, so I like the idea of having something small and portable to leave at the starting station, and having the toolbox/fueling station at one of the tables in the pits. I toyed with the idea of attaching a battery to the starter, but it makes it too heavy. The 5Ah battery in the small carry tray works perfectly.