Well, duh, they're tryin' to find some technology!
Airmar is a NH based company that makes transducers for depth finders/fish finders. I think they make pretty much every transducer out there and companies like Standard Horizon and Humminbird etc. just paste their own labels on them. They are probably just doing a bit of testing on some nice new products we'll be able to buy in a year or two. I understand they provide a great place to work. Saw a segment about them on the show "NH Chronicle" a few months back.