Humminbird HELIX 7 SI GPS Model: 409850-1 UPC: 082324046421 Side Imaging Sonar -- Gain a 180° side to side perspective on the world below the surface Down Imaging Sonar -- Get a fish-eye's view of what's happening below your boat. Incredible images are created with High-frequency sound waves. SwitchFire Sonar -- Take command of how your sonar returns appear with our Clear and Max Modes.
Humminbird HELIX 7 DI GPS DownImaging, Dual Beam Model: 409830-1 UPC: 082324046476 Down Imaging Sonar -- Get a fish-eye's view of what's happening below your boat. Incredible images are created with High-frequency sound waves. SwitchFire Sonar -- Take command of how your sonar returns appear with our Clear and Max Modes.
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