Catch more fish on your next salt or freshwater outing thanks to the sonar capabilities of Humminbird's Helix 5 DI GPS. This fishfinder utilizes Down Imaging/DualBeam PLUS, that is filtered with SwitchFire technology. The latter allows you to adjust the sensitivity to fine tune the returns that show on the 5" LED-backlit display. This system has a RMS power output of 500W, and a peak to peak output of 4000W, which allows the unit to provide an accurate representation of the bottom down to 350' (DI) & 600' (2D). The transom-mounted transducer features multiple coverage angles of 16, 28, 45 & 75° @ -10db, so that you can adjust the coverage to suit depth and angling conditions for the best returns.
With an internal GPS antenna, you will always know where you are and how fast you are going. Mark waypoints for structures or areas where you've had angling success and return to them at a later date. Built-in UniMap cartography covers the contiguous US coastline, inland lakes and rivers at 30 meters per pixel resolution. Load optional cartography using the micro SD card slot for access to higher resolution maps of waterways across North America.