The Powerfully simple 3.5-inch color echo 301dv includes an all-in-one transducer that delivers both advanced HD-ID 77/200 kHz and Garmin DownVu scanned images simultaneously on a horizontally or vertically split screen. The images provide the clearest possible sonar picture of fish returns and nearly photographic structure detail under the boat. Smooth Scaling graphics provide uninterrupted imagery when switching between depth-range scales. The 2,400 W peak-to-peak Power scans as deep as 1,750 feet maximum – and narrow-to-wide viewing cone angles give you a big picture well beyond the sides of your boat. Includes a quick-release tilt/swivel mount plus transom and low-profile trolling motor transducer mounts to make installation a snap.