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Garmin EchoMap

SKU 42521 Category Marine electronics and navigation

€477.80

Garmin ECHOMAP Plus 42cv chartplotter and fishfinder with 4.3” display, built-in GPS, GT20-TM transducer, CHIRP sonar and ClearVü scanning sonar.

Garmin ECHOMAP Plus 42cv is a compact yet capable chartplotter and fishfinder built for anglers and boat owners who want reliable navigation, quality sonar performance and easy operation in one device.

This model comes with the GT20-TM transducer and supports traditional Garmin CHIRP sonar together with ClearVü scanning sonar, giving you a clear view of fish, bottom structure and underwater objects below the boat. It also features built-in GPS and Garmin Quickdraw Contours, allowing you to create your own fishing maps in real time.

The bright 4.3-inch sunlight-readable display provides clear visibility during fishing and navigation, while the intuitive keypad interface makes operation quick and dependable on the water.

Why choose Garmin ECHOMAP Plus 42cv?

🗺️ Built-in GPS and chartplotter – mark waypoints, create routes and navigate with confidence
🎣 CHIRP + ClearVü sonar – clear fish arches and structure detail
📍 Quickdraw Contours – create your own 1 ft contour maps
☀️ 4.3” sunlight-readable display – good visibility in bright conditions
🔄 Quick installation and removal – practical for everyday use

Key Features

Includes GT20-TM transducer
Traditional Garmin CHIRP sonar
CHIRP ClearVü scanning sonar
Built-in Garmin Quickdraw Contours
Built-in GPS for waypoint marking and navigation
Compatible with BlueChart g3 and BlueChart g3 Vision charts
Waypoint and route sharing with compatible ECHOMAP and STRIKER units

A great addition for fishing and boating

This compact combo unit brings together essential fishing and navigation features in one housing. ECHOMAP Plus 42cv is easy to install and operate, while its 4.3” display remains readable during sunny days on the water.

With CHIRP sonar and ClearVü scanning, the unit gives you a strong view of what is below the boat, while the built-in GPS lets you save waypoints, follow routes and return to productive fishing spots.

The difference Garmin CHIRP makes

Traditional Garmin CHIRP sonar delivers improved clarity, better target separation and more detail than basic sonar. This makes it easier to identify fish, structures and bottom transitions across different depths and fishing conditions.

Clear scanning sonar images

ClearVü scanning sonar provides nearly photographic images of objects and structure beneath the boat. It helps you distinguish fish from timber, rocks, bottom transitions and other underwater features more easily.

Quickdraw Contours for building your own maps

Built-in Quickdraw Contours lets you create your own HD fishing maps in real time, with 1 ft contour lines. This is especially useful for anglers fishing local waters who want to keep their own detailed maps and fishing spots.

Technical Specifications

Model	Garmin ECHOMAP Plus 42cv
Part Number	010-01884-01
Display	4.3”
Device Type	Chartplotter and fishfinder combo
Sonar	Traditional CHIRP + ClearVü
Transducer	GT20-TM
GPS	Built-in
Chart Compatibility	BlueChart g3 and BlueChart g3 Vision
Quickdraw Contours	Yes
Memory Card	1 x microSD, up to 32 GB
Power Input	9 – 18 V DC
Water Rating	IPX7
Max Waypoints	5,000
Max Routes	100

What’s included in the box?

Garmin ECHOMAP Plus 42cv unit
GT20-TM transducer
Mounting bracket
Power cable
Documentation

Important Note

This model belongs to the older but still very popular ECHOMAP Plus series. ECHOMAP Plus 40 models do not support NMEA 2000, which is important if you plan broader onboard integration.