A bit of advice, scope with that capabilities and price point is a serious tool, these are not some common gadgets like computer, camera, phone or other cool & trendy electronic gadget.
If I'm not mistaken, one of the purpose of this marketing activities is to bring product awareness to the "right audiences", and its just doesn't feel right if the winner probably can't appreciate what it does, or worst doesn't even know what a scope is, which is very possible by the way this event was made. Surely, the "right audiences" will feel a great disappointment knowing this precious gadget might fall into the wrong hand instead to one of them.
Why not do it better next time like making a quiz to test the contestant's product knowledge, and in depth if needed, so its not enough just by briefly browse or read your product's brochure or data sheet, but actually they will have to go through in detail and understand your product's strong points and competitive edges, and who ever came out 1st with the right answer wins it.
Believe with this kind of contest will be quite an effective filter leaving out only the right audiences as the right target, and hopefully will be better served than those people that only have big & fast network or script kiddies.