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Manufacturer: Garmin 010-00764-02
Garmin GPSMAP 421S features an ultra-bright 4" QVGA display along with an improved high-speed digital design for faster map drawing and panning speeds. Plus, the Garmin GPSMAP 421S' waterproof units have a high-sensitivity internal GPS receiver, so mariners will always know their position at sea. The Garmin GPSMAP 421S is ready to go with a built-in, satellite-enhanced worldwide basemap and Garmin's proven easy-to-use interface designed to help you navigate the open waters with ease. The Garmin GPSMAP 421S is compatible with various NMEA 2000 components, inculuding Garmin's full lineup of NMEA 2000 marine sensors and autopilots.
The Garmin GPSMAP 421S is a compact chartplotter that features an ultra-bright 4" QVGA color display along with an improved high-speed digital design for increased map drawing and panning speeds. It's ready to go with a built-in, satellite-enhanced worldwide basemap and an easy-to-use interface designed to help you navigate the open waters with ease. The Garmin GPSMAP 421S also accepts BlueChart g2 Vision cards for added features and functionality such as high-resolution satellite imagery, 3D views and Auto Guidance technology.
The Garmin GPSMAP 421S basemap contains worldwide satellite images in place of traditional maps. The Garmin GPSMAP 421S also comes standard with a high-sensitivity GPS receiver for superior satellite tracking and quicker acquisition times. In addition, the Garmin GPSMAP 421S can receive U.S. graphical weather data via optional GXM 51 satellite receiver/antenna. And with an SD card slot, it's easy to add additional maps without connecting to a computer.
Specifications and Features:
Ultra-bright 4" diagonal QVGA display, 240 x 320 pixels - over 800 nits of brightness
NMEA 2000 certified for seamless integration with the Garmin marine lineup
Preloaded worldwide marine basemap
Compatible with GXM 51 for XM Satellite Radio and XM WX Satellite Weather
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 a 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 (12.7cm H x 14.5cm W x 6.9cm D)
Power output: 500 watts (RMS) 4000 watts (peak to peak), dual frequency
Depth: 1500 feet/500 meters (dual frequency)
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
Adjustable depth line helps gauge desired fishing levels and bottom clearance
Split zoom display offers a closer look at fish targets and bottom structure
2X, 4X, and bottomlock zoom
Adjustable keel offset
Alarms for fish size, shallow water, deep water, and low battery.