Humminbird 4088901&Acirc;&nbsp; 898C HD SI Combo Side Imaging/Down Imaging Dual Beam Fishfinder and GPS with Ethernet (Discontinued by Manufacturer) Depth: 150 ft (SI/DI) 1500 ft (3000 ft with optional 50 kHz transducer for extreme deepwater use) Mounting: Gimbal or In-dash Side Imaging, Down Imaging and DualBeam PLUS SONAR with SwitchFire Precision GPS and built-in ContourXD Dual SD Card Slots 7" Display With Ccfl Backlight * 480 X 800 Pixels * Switch fire Down looking Sonar *chartplotting With Lake Master and Navionics Platinum Compatibility * Dual beam Plus Sonar