The Garmin GPSMAP 421s w/ Dual-Freq Transducer is a slim-line chartplotter that sports an ultra-bright 4” QVGA display, a built-in satellite-enhanced worldwide basemap and straightforward buttons and menus. The Chartplotter also comes standard with a high-sensitivity GPS receiver for superior satellite tracking and quicker acquisition times.

The GPSMAP 421s comes with a powerful dual-frequency transducer that clearly illustrates depth contours, fish targets and structures. The 421s is also NMEA 2000-certified for easy connectivity with sensors, instruments and future marine offerings. And with an SD card slot, add additional maps without connecting to a computer.

GPSMAP 421s Features:

• GPS Chartplotter & Sounder Combo
• Part Number: 010-00764-01
• Sonar Ready Version
  - Transducer Included
  - Dual Frequency: 50kHz / 200kHz
  - Dual Beam: 45° / 10°
  - Illustrates Depth Contours, Fish Targets and Structures
• 4" QVGA Color Screen
• Waterproof to IPX7 Standard
• High-Sensitivity Receiver
• New Streamlined Interface
  - Easy Selection of Functions / Features
• Single SD Memory Card Slot for BlueChart g2 Vision Cards
  - Saves Waypoints Routes for Sharing
  - Auto Guidance
  - 3-D Map View
• XM WX Satellite Weather Capable
• Preloaded Software
  - Worldwide Satellite Imagery
• BNC Connector for Optional GA29 Remote GPS Antenna
• NMEA 0183 Compatible & NMEA 2000 Certified
• 3000 Waypoints
• 10,000 Point Active Track Log & 50 Saved Tracks
• AIS Support
  - Track Target Ships' Position
• DSC Support
  -Displays Position Data from DSC Capable VHF Radio
• Dual Frequency 50kHz (45°)/ 200kHz (10°) Transducer
  - For Maximum Saltwater Performance
• Sun & Moon Information
• Alarms
  - Fish Size / Shallow & Deep Water / Battery

Included FREE:

• Dual Frequency Transducer
• Power / Data Cable
• Mounting Bracket w/ Tilt / Swivel
• Protective Front Cover