With fewer buttons to push and fewer operational steps to navigate, the simplified menu format on the Garmin GPSMAP 420s makes it easy for you to see and select the data you want to access on-screen. The Garmin GPSMAP 420s includes a combo sounder that can scan as deep as 1500 feet/ 457 meters (with dual frequency transducer) to clearly paint depth contours, fish targets, structure, etc.

Plug in optional Garmin BlueChart g2 Vision cards to add true 3D-view detailed mapping capabilities (both above and below the waterline), plus helpful auto guidance, high-resolution photomapping detail, and "real world" aerial photos of ports, harbors, marinas, waterways, navigation landmarks and other points of interest.

Garmin GPSMAP 420s Specifications:

Ultra-bright 4" diagonal QVGA display, 320 x 240 pixels - over 800 nits of brightness

New streamlined user interface offers easy selection of functions and features

Preloaded worldwide satellite imagery

Single SD memory card slot for BlueChart g2 Vision cards, as well as saving waypoints, routes and tracks to a SD card which can be shared with others

Built-in GPS antenna

BNC connector for optional GA29 remote GPS antenna

Backlit keypad for easier operation at night

CANet proprietary bus allows display and control of full feature sounder data on Garmin chartplotters

Two NMEA 0183 I/O ports

Unit dimensions: 5.7"W x 5.0"H x 2.7"D

Garmin GPSMAP 420s Additional Features:

New sounder design featuring excellent shallow water performance

Depth: 900 feet (dual beam), 1,500 feet (dual frequency)

Choice of a dual frequency transducer 50kHz (45°), 200kHz (10°) for maximum saltwater performance or a optional dual beam transducer 80kHz (45°), 200kHz (14°) for maximum freshwater performance

Patented transom/trolling mount transducer

UltraScroll high rep rate sonar provides lightning-fast screen updates

New AutoGain technology enhances target visibility

See-Thru technology: shows weak and strong returns simultaneously

Water temperature log graphically records water temp data

Round flasher display mode (in dual beam mode) and A-scope (in dual frequency mode)

Whiteline

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


Ships With The Following Items:

Garmin GPSMAP 420s

Built-in GPS Receiving Antenna

Power/Data cable

Mounting bracket with tilt/swivel

Protective front cover

Owner's manual and Quick Reference Guide