
The Humminbird 410190-1 HELIX 5 Sonar G2 Fishfinder boasts a crisp, widescreen color display with intuitive controls. DualBeam PLUS sonar uses a focused center beam and a second 60° beam to expand your coverage to an area equal to your depth. And SwitchFire sonar lets you take command of how your sonar returns appear with Clear and Max modes.
Q: Does this have chirp sonar and gps?
A: No. It's the Basic Helix Unit.
Q: Will this work on aluminum boats?
A: It should...the unit head is usually mounted in the rear of the boat just below the waterline with screws.