Garmin GPSMAP 8412 12in Plotter is the centerpiece of a modern glass-helm marine cockpit, designed for serious cruisers, sailors, and racers. It combines a bright 12-inch full HD IPS touchscreen with fast processing and seamless networkability to keep navigation, charts, and vessel data at your fingertips.
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Display & Mounting: 12-inch full HD IPS touchscreen with anti-glare finish and wide viewing angles; mount as flush glass helm or edge-to-edge for a sleek, contemporary look.
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Network & Connectivity: Network-ready with NMEA 2000 and Garmin Marine Network to share radar, autopilots, cameras, forward-looking sonar, and more across multiple screens; built-in Wi‑Fi, Bluetooth, and ANT for pairing with the ActiveCaptain app, Quickdraw data, and wireless sensors.
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System Integration: OneHelm integration coordinates third-party onboard systems for centralized control from your chartplotter; SmartMode station controls enable one-touch access to critical information during docking and tight maneuvers.
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Navigation & Guidance: SailAssist provides sailing data and prerace guidance for racers and cruising crews; Auto Guidance helps set a suggested route based on your boat’s specs and charts.
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Maps & Memory: Expandable memory for BlueChart g3 and BlueChart g3 Vision with Navionics data to ensure the newest charts and features; pre-loaded Worldwide Basemap; accepts data cards (2 microSD cards on back).
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Performance & Compatibility: Powerful processor for fast map drawing, quick routing, and multitasking; built-in support for USB touchscreen output for Windows and Mac as a monitor; Garmin Radar and Sonar compatibility; AIS and DSC support.
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Video & Data Distribution: Integrated memory supports video and data distribution for a connected cockpit (via compatible Garmin devices); video streaming and camera control with GC™ 100 wireless cameras and VIRB® action cameras.
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Remote Control: Optional GRID™ 20 remote input device with 360-degree joystick for intuitive remote chartplotter control.
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Physical & Installation: Dimensions 11.9" x 8.5" x 3"; weight 6.0 lbs; IPX6 and IPX7 water rating; internal or external antenna over NMEA 2000; mounting options include bail, flat, or flush (professional tools/knowledge required for a flat-mount installation).
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Memory & Navigation Data: 5,000 waypoints, 100 routes (250 waypoints each), 50,000 track points with 50 saved tracks; 2 microSD slots for expanded data storage.
This plotter centralizes navigation, sensor data, and multimedia across compatible Garmin devices, enhancing situational awareness and cockpit control. SailAssist and Auto Guidance support smarter voyage planning, while robust connectivity and expandable maps keep charts current and data flowing—delivering a streamlined, confident boating experience.
| General |
| Physical dimensions |
11.9" x 8.5" x 3" (30.3 cm x 21.6 cm x 7.6 cm) |
| Weight |
6.0 lbs. |
| Water rating |
IPX6 and IPX7 |
| Display type |
touchscreen IPS display (anti-glare finish) |
| Display size |
10.1" x 5.7" (25.7 cm x 14.5 cm) |
| Display resolution |
FHD; 1920 x 1200 pixels |
| Power consumption |
2.4 A |
| Antenna |
Internal or external over NMEA 2000 |
| Mounting options |
Bail, flat or flush (Garmin do not offer any hardware or accessories for a flat-mount installation. Professional tools and knowledge is required.) |
| Receiver |
10 Hz GPS/GLONASS/Galileo |
| Garmin Marine Network™ ports |
2 |
| Maps & Memory |
| Accepts data cards |
2 microSD cards (on back) |
| Waypoints |
5,000 |
| Routes |
100 (250 waypoints each) |
| Track log |
50,000 points; 50 saved tracks |
| pre-loaded maps |
Worldwide Basemap |
| Outdoor Recreation Features |
| Tide tables |
Yes |
| Chartplotter Features |
| Garmin Radar compatible |
Yes |
| Garmin Sonar compatible |
Yes |
| Garmin SmartMode compatible (customizable monitor presets) |
Yes |
| Supports AIS (tracks target ships position) |
Yes |
| Supports DSC (displays position data from DSC-capable VHF radio) |
Yes |
| Supports FUSION-Link™ compatible radios |
Yes |
| GSD™ Black Box sonar support |
Yes |
| GCV™ Black Box sonar support |
Yes |
| ActiveCaptain compatible |
Yes |
| Garmin Helm compatible |
Yes |
| GRID™ (Garmin Remote Input Device) compatible |
Yes |
| Wireless remote compatible |
Yes |
| Sonar Features & Specifications |
| Dual-frequency (50/200 kHz) sonar capable |
Yes (with external black box, sold separately) |
| Dual-beam (77/200 kHz) sonar capable |
Yes (with external black box, sold separately) |
| Frequencies supported |
NA |
| Transmit power |
NA |
| CHIRP sonar technology |
Yes_(when_connected_to_another_compatible_sonar_device) |
| ClearVü |
yes (with GCV™ black box, sold separately) |
| SideVü |
yes (with GCV™ black box, sold separately) |
| Maximum depth |
NA |
| Connections |
| NMEA 2000® compatible |
Yes |
| Transducer pin numbers |
NA |
| NMEA 0183 input ports |
1 differential |
| NMEA 0183 output ports |
1 differential |
| Video input ports |
1 - BNC composite
1 - HDMI (HDCP compliant) |
| Video output ports |
1 HDMI |
| Wireless connectivity |
Yes |
