The HDR 610 In-Dash Digital Depth Gauge offers reliable depth readings and customizable colors to complement the gauges already in your boat dash. Each HDR 610 comes with a black and whit face plate and trim ring¿you decide what looks best! Great for all types of boating, the HDR 610 reliably tracks the bottom, even at high speeds, with the additional benefit of both deep and shallow depth alarms. The rubber buttons and backlit display make it easy to use, day or night. In addition, the gauge is easy to install in any existing 2 1/8" gauge opening, it's easily wired to the ignition switch so it automatically powers on, and the transducer can be transom mounted. Or, you can purchase the HDR 610P and get a through hull puck transducer. Just as important, each HDR 610 gauge is built in the U.S. by Humminbird, so you count on it for years of dependable service.