Raymarine a98 9-Inch Multifunction Display with DownVision/Wi-Fi/CPT-100 Transom Mount Transducer and Navionics + The a98 features a 9.0" diagonal LED backlit LCD display that is optically bonded to its touchscreen for superior visibility day and night Internal 10hz GPS for fast smooth vessel tracking Award winning wide-spectrum CHIRP DownVision sonar technology for photo-like images, high-speed tracking and better deep water resolution Powerful, go-anywhere navigation; aSeries multifunction displays deliver the speed and simplicity of LightHouse II in a fast and fluid touch screen experience Designed for the way boaters think, Raymarine's exclusive LightHouse User Interface (UI), offers an incredibly easy-to-use navigation experience; LightHouse intuitively places frequently used navigation functions right at your fingertips