Overview

The Garmin ECHOMAP Ultra 2 122sv is a chartplotter and fishfinder combo that puts mapping, GPS, and scanning sonar on one helm-friendly touchscreen. It runs on 9 to 18 VDC and carries an IPX7 water rating, so it fits cleanly into typical 12V marine electronics installs at a console, tower, or dash.

This listing covers the ECHOMAP Ultra 2 sv family in multiple screen sizes (10", 12", and 16") and bundle options. Across the range you get multi-band GPS for tighter position holding, built-in sonar support rated at 600 W, and support for LiveScope when paired with a compatible LiveScope setup. Networking features make it practical to share data with other electronics on board, and two microSD card slots keep charts and user data easy to manage.

Key features

• Screen size choices across the family: 10", 12", or 16" class touchscreens with keyed assist for wet hands and quick inputs
• Power input 9 to 18 VDC for standard 12V boats (a regulated step-down is needed on 24V systems)
• IPX7 water rating for open-boat installs and routine washdowns
• Built-in sonar support rated at 600 W, including CHIRP traditional plus ClearVü and SideVü scanning when paired with a compatible transducer
• LiveScope support for live-scanning sonar when used with a compatible LiveScope system
• Multi-band, multi-constellation GPS receiver for improved position accuracy
• NMEA 2000 network compatibility for bringing heading, engine data, autopilot data, and other NMEA information onto the display
• Wi-Fi and ActiveCaptain support for software updates, screen recording, and sharing data like Quickdraw Community contours
• Two microSD card slots for charts and data storage

Variants

This product is offered in multiple configurations that vary by display size (10", 12", or 16"), chart package (Worldwide basemap or Garmin Navionics+), and whether a transducer is included. Transducer bundles include the GT56UHD-TM transducer.

The mapping option changes what is ready to use on day one, and Garmin Navionics+ packages include a 1-year subscription for chart updates. Screen specs also differ by size: the 10" and 12" units use 1280 x 800 resolution, while the 16" unit uses 1920 x 1080 resolution.

Installation and setup

Mounting can be done with a bail mount or as a flush install, depending on how you want the display to sit at the helm. Plan cable routing early so the power lead, network connections, and transducer cable have strain relief and a dry path behind the dash, especially on center consoles that see spray and vibration.

Power requirements scale with screen size. Typical current draw at 12 VDC is 2.5 A on the 10" and 12" units, and 3.9 A on the 16" unit. A dedicated, fused feed from a clean electronics bus helps keep sonar performance stable and reduces interference.

Compatibility and system integration

If your boat already has an NMEA 2000 backbone, the unit can be tied in to display shared data like heading and other NMEA information on the chart and sonar pages. On larger systems, the chartplotter can also be part of a wider Garmin setup, including wireless features through ActiveCaptain and compatible device-to-device sharing.

On fishing boats that run a Garmin Force trolling motor, wireless control features can be used for tasks like navigating to waypoints and following routes, keeping hands on the rod while the boat stays on the line.

Use cases on board

This setup fits anglers who want charting and scanning sonar in one place for structure fishing, coastal passes, and nearshore runs, and it also suits cruisers who want a clear navigation screen with modern GPS accuracy. The larger 16" screen is a better match when the display needs to be read from a distance, like on a wide helm or dual-station layout.

Maintenance and care

Rinse salt spray off the screen and connectors with fresh water after harsh days, and avoid harsh solvents when cleaning the display. Periodic checks of mount hardware and cable strain relief are worthwhile on boats that see rough water, since vibration is what loosens electronics over time.