[Airslot]

Google this as one phrase:

Furuno b60-20

also see:

Furuno b60-12

I think its a much better unit for our boats. It has depth, temp, and is dual frequency. Depending how close the the keel it is you may need the "-12". If you are onto the main deadride 20* part, then the -20 would be perfect.

Check it out.

Airslot