Garmin GPSMAP 1242 Plus Chartplotter

  • Ex Tax: $2,024.99
  • Brand: Garmin
  • Product Code: GA0232201
  • Availability: In Stock

12” Chartplotter with BlueChart G3 and LakeVu G3 Charts    The Garmin GPSMAP 124..

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Garmin GPSMAP 1242 Plus Box Contents
Each Garmin GPSMAP 1242 Plus Comes with:
  • GPSMAP 1242 Plus Chartplotter
  • Power Cable
  • NMEA 2000 T-Connector
  • NMEA 2000 Drop Cable (2m)
  • Bail Mount with Knobs
  • Flush Mount Kit with Gasket
  • Protective Cover
  • Trim Piece Snap Cover
  • Documentation
  • 2 Year Warranty
Garmin GPSMAP 1242 Plus Key Features
  • Preloaded Coastal and Inland Maps
  • Supports Radar, SiriusXM and Multiple Displays
  • J1939 Connection
  • Internal 10Hz GPS Receiver
  • Accepts 2 SD Cards
  • Size: 13"W x 8.9"H x 3.1“D

12” Chartplotter with BlueChart G3 and LakeVu G3 Charts


The Garmin GPSMAP 1242 Plus Chartplotter has a 12-inch, 1280 x 800 pixel, touchscreen display with an internal 10Hz high sensitivity GPS receiver. Enjoy full polarized support with the GPSMAP Plus series, which allows users to view the bright display without glare even when wearing polarized sunglasses. Mount the GPSMAP 1242 with the included bail mount or flush mount the unit with the included flush mount kit. Two Garmin Marine Network ports allows for support with Garmin network devices including radar, sonar black boxes and SiriusXM Weather, while the 2 SD card slots accept additional Garmin charts or SD cards for data storage.

Preloaded Coastal and Lake Charts

The Garmin GPSMAP Plus 1242 chartplotter is preloaded with Garmin BlueChart G3 and LakeVu G3 Charts. Garmin G3 charts combine Garmin and Navionics data to provide detailed information including Depth Range Shading, up to 1-foot contours providing an accurate depiction of the bottom structure and Auto Guidance Technology which suggests a path to follow and overlays it on your chart. Coverage includes both Coastal and Lake waters within the United States, including the Bahamas.

Compatible with Garmin’s Premier Mapping

Garmin BlueChart G3 Vision and or LakeVu G3 Ultra charts feature High Resolution Relief Shading (not offered in all areas), Aerial Photography and FishEye/MarinerEye Views. The Garmin LakeVu G3 Ultra charts also include Dynamic Lake Levels which adjusts your maps to the lake’s current water level to provide a better idea of Lake accessibility. Click here to shop Garmin LakeVu G3 Ultra Charts and here to shop Garmin BlueChart G3 Vision Charts.

Packed with Features- from Basic to Advanced

Easily view your boats speed over ground thanks to the internal 10Hz GPS receiver. Mark waypoints, create hundreds of routes and organize your data easily within the GPSMAP Plus. 
The GPSMAP Plus series boasts many Garmin SailAssist features including race start lane guidance, enhanced wind rose, heading and course over ground lines. True wind data fields and laylines are easily viewed on the anti-glare display. Customize your display and split the screen to display information important to you. Never waste time again toggling through screens to get to information relevant to your boating application.

Connections and Networking

Garmin makes connecting almost any accessory to your GPSMAP Plus simple with multiple connection options. A single J1939 port is specific to the Plus series and allows for connection to different kinds of engines, including Yamaha engines. Two network ports allows for connection to compatible Garmin radars, SiriusXM Receivers, Sonar Black Boxes and more. If you intend to add more than two network units, a Garmin GMS10 Network Port Expander (Sold Separately) will be required. A single HDMI Video Output is unique to the 12" GPSMAP Plus series. NMEA 0183 and NMEA 2000 support makes integrating AIS Tranceivers or VHF radios a breeze! Integrated ANT Technology connects devices such as Garmin quatix Watches, gWind Wireless 2 Transducers and wireless remote controls.

ActiveCaptain and OneHelm

With Garmin’s ActiveCaptain App, you are no longer limited to view your information on your Garmin display. Want to view and control your screen from your larger sized tablet? Download the free App from Garmin- view and control your chartplotters data and maps from your compatible Smartphone or Tablet. The GPSMAP Plus series features Garmin OneHelm which brings together all operations and capabilities provided by participating third party industry associates to your Garmin device. The GPSMAP Plus series offers advanced solutions to make your boating experience as intuitive as possible, while simplifying your user experience!

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