The HDR 650 In-Dash Digital Depth Sounder gives you a backlight display and reliable depth readings to 70mph. Depth alarms can alert you to both deep and shallow water. Can be wired to ignition to automatically turn on. Includes a transom-mount transducer. Bezel colors: White, Black or Chrome. Faceplate colors: White or Black.Easy to Install into Existing 2 1/8" gauge openingCompletely waterproofEasy to read large, backlit LCD display for use at nightWires to Ignition Switch for Auto Power OnShallow and Deep Depth AlarmsReads in FeetTracks Bottom Up to 70mphSpecs:Display Type: LCD Screen Size: 1 1/4"diag. Frequency: 200kHz Transmit Power: 250W (RMS) Maximum Depth: 600' NMEA Interface: No Mounting Hole Size: 2 1/8"dia. Waterproof Rating: IP67 Warranty: One year