In case you don’t want to spend extra on a unit that also has GPS, but you happen to be interested in a medium-sized unit, with Down Imaging, the HELIX 7 DI is exactly the model you’ve been looking for. It has pretty much the same features as the HELIX 7 DI GPS, only without the GPS, and a few other functions. Evidently, it also costs cca $80 less than the aforementioned unit. Anyway, let’s see what this unit can do for you.
First of all, as its name suggests, it’s a unit