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Garmin echoMAP 45dv

Product Code: GARE45DV

Garmin echoMAP 45dv is a Chartplotter and Fishfinder with a 4.3-inch, colour, automatic backlight adjustable display. It comes preloaded with mapping for UK, Ireland and North West mainland Europe and you can add additional BlueChart g2 or g2 Vision maps to this Garmin Device.

The internal GPS antenna updates your location and heading 5 times per second meaning you get a fluid display of where you are and your direction. Plus the echoMAP features DownVu which provides a sonar view below the water. It is waterproof to IPX7 standards. Please note: For the Sonar to work you will have to separately buy a transducer.



Garmin echoMAP 45dv has been discontinued.

View latest Chartplotters

Accessories, spares and parts are still available for the Garmin echoMAP 45dv. In addition you can buy the latest Garmin marine g3 and g3 Vision BlueCharts.

The Garmin echoMAP 45dv is a Garmin Chartplotter and Fishfinder which features a 4.3-inch high-contrast display with automatic backlight adjustment, tilting for operability and keypad control for easy use. Preloaded to the echoMAP device are UK, Ireland and North West mainland Europe coast maps. The Garmin 45dv will always update your position on the map display using the built-in 5Hz Internal GPS; In fact it updates your position and heading 5 times every second resulting in a fluid display of your route taken.

The Garmin echoMap 45dv is compatible with transducers that use both 77/200 kHz HD-ID and Garmin DownVu. You willl need to buy a Garmin Transducer for the Sonar to operate.

The Garmin echoMAP 45dv will display views under the water using the built-in Sonar which provides 500 W (RMS) HD-ID/4,000 peak-to-peak. The displayed images provide a view below the water, below your boat which has been named by Garmin as DownVu. DownVu will show photographic images below the boat. The display will show structures below the water, submerged objects and fish. For the Sonar to work you will need to separately buy a transducer. With the echoMAP 45dv you can also record sonar images for playback on a computer using HomePort planning software.

To find the perfect transducer to partner your Garmin echoMAP 45dv and your boat please complete our online transducer form. Alternatively, if you know which transducer your require (we do however recommend that you complete our online form to find the perfect transducer) you can view the comprehensive range of transducers available buy from ActiveGPS. Pictured below, transom mounted transducer, thru-hull transducer and in-hull transducer.

The maximum depth whereby you can use your Garmin echoMAP 45dv sonar is:
In freshwater: 2,300 ft @ 77kHz
In saltwater: 1,100 ft @ 77kHz

If you would like an echoMAP chartplotter with a larger screen we recommend that you buy the Garmin echoMAP 55dv which features a 5-inch screen instead.

Upgrade the mapping on your echoMAP Chartplotter

The echoMAP 45dv come as standard with Garmin g2 BlueCharts for the waters around the whole of UK, Ireland and North West mainland Europe. Additional BlueCharts e.g. Bay of Biscay and Mediterranean coast of Spain are also available on SD/microSD Card.

The very best charts are BlueChart g3 Vision SD cards. These premium charts include: MarinerEye - keep an eye on 3D information above the waterline, FishEye - provides 3D information below the waterline. Furthermore high-resolution aerial images help you to identify where you should be traveling when you are unfamiliar with the layout of the waterways. There is an Auto Guidance feature that provides a route you can follow which avoids shallow water, buoys and other obstacles.

3-D view of the surrounding area both above and below the waterline.

You can save up to 5,000 waypoints and 100 routes to your Chartplotters' memory. Alternatively you can transfer waypoints and routes between Garmin devices using the supplied User Data Sharing Cable.

The echoMAP 45dv is waterproof to IPX7 standards and will also record water temperature in a log and graph.

Garmin echoMAP 45dv Features

‣4.3-inch high-contrast WVGA Chartplotter
‣Fishfinder via sonar
‣Preloaded Garmin BlueChart g2 UK and Ireland and North West Europe
‣Tilting display
‣Keypad control makes it simple to select modes and features
‣Built-in 5Hz internal GPS antenna update your position and heading 5 times per second for fluid display of your movements
‣DownVu for views below the boat
‣Maximum depth for Sonar use: In freshwater: 2,300 ft @ 77kHz In saltwater: 1,100 ft @ 77kHz
‣Waterproof to IPX7
‣Cleaner installation thanks to power plug which plugs into the mount making installing and removing the echoMAP quick and simple.
‣SD card slot allows upgrade to BlueChart g3 cartography
‣1 Year manufacturers guarantee

Sounder functions

‣Sounder output: up to 500 W (RMS) HD-ID/4,000 peak-to-peak
‣Depth: In freshwater: 2,300 ft @ 77kHz In saltwater: 1,100 ft @ 77kHz
‣Sonar recording. Playback using HomePort Software.
‣Graphic logging of water temperature
‣Alarm for fish size, shallow and deep water
‣A-scope (real time window)
‣White line
‣2x, 4x and bottom-locked zoom
‣Adjustable keel calibration
‣Split-screen zoom for a close-up view of fish and the bottom


Flush and Bail mounting options enable you to mount the echoMAP 45dv device against most flat surfaces in your boat.

Installing and removing the echoMAP 45dv is now also very quick and simple. The power plug connects into the mount not the device making the installation and removal a quick process. So when you are not in your boat you can simply and quickly remove your Garmin echoMAP Chartplotter. Likewise when you are using your boat you can efficiently connect the Chartplotter to your mount.

Chart Coverage

Garmin echoMAP 45dv marine chartplotters are preloaded with Garmin BlueChart g2 UK and Ireland.

Coverage of Garmin BlueChart g3 UK and Ireland chart

Coverage of Garmin BlueChart g3 UK and Ireland chart

The chart (pictured above) features detailed marine cartography coverage of the British Isles in their entirety, including the Thames Estuary, Caledonian Canal, Outer Hebrides, Shetland and Orkney Islands, Isle of Wight, Isle of Man, and the Irish Sea.

Coverage across the English Channel from Douarnenez, France to Emden, Germany, including the Channel Islands, and the Seine River to Rouen, France Detailed coverage includes Antwerp, Belgium, Rotterdam, Netherlands, Amsterdam, Netherlands, and the Ijsselmeer in full. Read more information about Garmin g3 marine Bluecharts.

In future years you can purchase a marine BlueChart g3 update SD card to update the preloaded UK and Ireland charts on the Garmin echoMAP 45dv.

What's in the box? (when purchased from

‣Garmin echoMAP 45dv
‣Preloaded Garmin BlueChart g2 UK and Ireland
‣Quick-release mount (Tilt/swivel quick-disconnect mount)
‣Power/data cable

Garmin echoMAP 45dv Accessories

Looking for Garmin echoMAP 45dv accessories? Accessories available to purchase include 4-inch protective cover, flush mount kit and tilt and swivel mount. If you'd like to add a transducer to your echoMAP 45dv please see this page.

View all Garmin echoMAP 45dv accessories

Garmin echoMAP 45dv Charts

Add Garmin BlueChart g3 marine charts to your Garmin echoMAP 45dv, view the different Garmin g3 Bluecharts you can buy from ActiveGPS.

Garmin echoMAP 45dv Technical Specification

‣Technology: GPS Chartlotter, Fishfinder
‣Display: 4.3-inch WVGA display (480 x 272 pixels)
‣Battery: None
‣Waypoints/favourites/locations: 5,000
‣Routes: 100
‣Track Log: 50,000 points, 50 saved tracks
‣Basemap: None. Preloaded with Maps of UK and Ireland g2 map.
‣NMEA input/output: NMEA 0183 compatible
‣Built-in memory: None (cannot load maps to internal memory)
‣SD card slot: Yes
‣Garmin radar compatible: No
‣Garmin sonar compatible: Yes
‣Waterproof: Yes, IPX7
‣Dimensions: Width - 102mm, Height - 168mm, Depth - 46mm
‣Weight: 0.7kg
‣Guarantee: 1-year
Garmin echoMAP 45dv manual

Manual requires Adobe Acrobat Reader
Download a free copy here

This product is a sophisticated electronic device which requires that you read, understand, and act upon the information given in the instruction manual (usually available via the above 'manual' link). You will need internet access and, in accordance with the manufacturers’ recommendations, regularly seek out and accept all firmware or software updates offered by the manufacturer. All GPS devices need to ‘see’ the satellites in the sky. Therefore you will need to know that your vehicle does not have glass that will block or impede the GPS signal.

Updates to this product are via the internet. At this product page we state compatibility with specific versions of current internet connection devices, for example: PC, laptop, MAC, smartphone etc. The Consumer Contract Regulations allow you 14 days, from receipt of purchase, to check compatibility with your internet connection device/s. If you choose to replace or update your PC, MAC etc. neither we nor the manufacturer will be responsible if the new/replacement Operating System (OS) is not compatible with the purchased product.

Why buy from us?

We are official Authorised Internet Retailers for Garmin. We sell genuine Garmin products, accessories and maps. We purchase from assigned Garmin UK distributors. We do not buy on the grey market and we do not sell counterfeit products. You can rest assured that by purchasing from ActiveGPS you will receive the full support of Garmin.

Page updated: 15th March 2024

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