Airmar b175_ it is, at about $1000 plus! The continental shelf here in NE extends out about 90 miles, long ride to the canyons, most everywhere is 200’ or less. Not a lot of deep drop fishing at depths to 600’. I don’t know anything about that type of fishing (except once did a charter with electric reels, mate called it ‘harvesting’ not fishing). Is the goal to find fish in the water column, examine bathymetry, search for wrecks?
Owned both Simrad mfd (nss12 evo3) and currently Garmin mfd. The Simrad had knobs too, I preferred the Simrad,