Humminbird’s Side Imaging was the first side-scanning sonar, but other marine electronics brands soon followed suit. Now Humminbird innovates again with its ultra-high-frequency, high-definition Mega ...

Today, Humminbird continues to be on the cutting edge of side-imaging fish finders, along with down-imaging and live-view sonar technology.

Side imaging units have become standard equipment on the boats of the Bassmaster Elite Series pros. "Going without one would be like going without a trolling motor," says Alabama pro Tim Horton.