GPSMAP 431S GPS CHART FISHFINDER DUAL BEAM T/M

GPSMAP 431S Chartplotter Combo - Includes Dual Beam TransducerFeatures an ultra-bright 4" QVGA display along with an improved high-speed digital design for faster map drawing and panning speeds. Plus, these waterproof units have a high-sensitivity internal GPS receiver, so mariners will always know their position on the water. They are ready to go with built-in cartography for inland U.S. waters (over 14,000 lakes) and Garmin's proven easy-to-use interface designed to help you navigate the waters with ease. Features and Specifications: Ultra-bright 4" diagonal QVGA display, 240 x 320 pixels - over 800 nits of brightness Preloaded with charts for over 14,000 U.S. lakes and navigable rivers Built-in high-sensitivity GPS receiver High-speed processor for fast screen redraws and smooth panning Streamlined user interface makes it simple to select modes and features Single SD memory card slot for BlueChart g2 Vision cards, as well as saving waypoints, routes and tracks to an SD card Optional BlueChart g2 Vision cards provide marine chart detail and enhanced navigation features like Auto Guidance, satellite imagery, 3-D Mariner's Eye View and 3-D Fish Eye View Backlit keypad for easy operation in low light conditions Unit dimensions: 5.0"H x 5.7"W x 2.7"D Power output: 400 watts (RMS) 3200 watts (peak to peak), dual beam Depth: 900 feet/300 meters (dual beam) Use a dual frequency transducer 80 kHz (45 degrees), 200kHz (14 degrees) for maximum saltwater performance UltraScroll high rep rate sonar provides lightning-fast screen updates AutoGain technology enhances target visibility See-Thru technology shows weak and strong returns simultaneously Water temperature log graphically records water temp data A-scope Round flasher display mode Whit