Garmin GPSMAP 740s Chartplotter / Sounder with GMR 18HD Radome with No Transducer

Priced: $1,799.99 Rated:   - 4 stars out of 5 by 9 reviews. $1,799.99
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Garmin GPSMAP 740s Chartplotter / Sounder with GMR 18HD Radome with No Transducer -
GPSMAP 740s Plotter/Fishfinder/Radar Package.
Save on this value priced package which add the Garmin 18” HD radar dome to the popular 740s

GPSMAP 740 is a stand-alone touchscreen chartplotter that brings a new level of functionality to your vessel. Featuring a brilliant 7-inch display, GPSMAP 740 puts all the information you need right at your fingertips. GPSMAP 740 is preloaded with U.S. coastal maps. In addition, GPSMAP 740 accepts radar input and offers full NMEA 2000® connectivity for greater convenience when adding extra sensors.

Explore the Seas

GPSMAP 740 contains preloaded map data for all U.S. coastal areas, including Alaska and Hawaii, plus Explorer Charts for the Bahamas. GPSMAP 740 also features an internal, high-sensitivity GPS receiver for superior satellite tracking and quicker acquisition times. And as an added benefit, GPSMAP 740 can receive graphical weather data for North America through the optional GXM™ 51 satellite receiver/antenna.

Take Control by Touch

Input is easy with GPSMAP 740. Whether you’re changing course or simply reviewing information in front of you, the intuitive touchscreen interface makes for simple operation. The device also offers flexible brightness levels for daytime readability along with low-light dimming during night use. And with a widescreen display that’s rugged and waterproof, it’s made to perform in any situation.

Expand with Radar

Featuring a built-in radar port, GPSMAP 740 can be interfaced with Garmin’s line of affordable GMR™ marine radar systems. Whether you’re adding radar now or in the future, you’ll enjoy the convenience of “plug-and-play installation” as well as the power, range and high-definition targeting of our proven radar offerings.¹

Add Sonar with GPSMAP 740s

GPSMAP 740s comes standard with a 1kW-capable sonar transceiver. This powerful sonar can help you define fish targets and underwater structures as far down as 2,000 feet when used with a 1kW transducer.²

Add Extras with BlueChart g2 Vision

With the optional BlueChart® g2 Vision SD™ card, you can add a whole new dimension of exceptional features to your chartplotter.

¹Garmin Marine Network not supported.

²Depth capacity is dependent on water salinity, bottom type and other water conditions (with 1 kW transducer).

Physical & Performance:

Maps & Memory:


What You’ll Need.

The 50/200 kHz Traditional Transducers - 6 Pins  operate with either 500W, 600W or 1kW transducers, sold separately. Depending on the style of the transducer, you’ll get depth, speed and/or temperature readings. To complete your installation, order one of the following transducers: 

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Garmin GPSMAP 740s Chartplotter / Sounder with GMR 18HD Radome with No Transducer Reviews:

Positive Reviews:

Don't forget to buy HomePort for this

I just unpacked my brand new unit and discovered two things that are not clear in any of the advertising. First you really need the Garmin PC software HomePort - It's not expensive, only $30 and I can't understand why Garmin didn't just include it with this [$] instrument. But worse I am a LONG way from the states and now have to order HomePort which could have been added to the shipment to start with.The second thing you won't know until you unpack the unit is that there are TWO wires to the radar - one for power the other for the radar data. Why Garmin did not put them together in one wire, like Raymarine, is beyond me. They also say not to route the data wire parallel and close to power cables. Pretty difficult to do when the Radome is 10 metres up the mast and both cables are 10 metres long and need to get to the adjacent sockets.
Richardhc at on 07/07/2012

Three features in one package

The 740s gives me radar, GPS and sonar without needing a complicated network. The connections and setup were easy. Drilling through the mast and routing through the bilge was tight, but straightforward. Picture quality is excellent. Only wished that the radar cables could be supplied in two sections, disconnected at the mast base for easy take down. With single cable segments from radar to unit, there are 3 separate lines that have to be removed throughout the boat, should I need to take the mast off the boat.
John at on 06/06/2011

Easy Installation, Easy to use!

Replaced an older Fruno chartplotter with this model. It is much easier to learn and use. I did have assistance installing the new transducer (optional) but installation of the Garmin was easy by following the instructions. It only took about 4 hours to install. I also added the optional GPS antenna. With the optional 3-D chip the GPS Screen provides a satellite view and even have a Radar overlay which is very helpful.
Tom the Past Gov at on 03/03/2011

Love it

We bought the 740s with radome package. Setup was straightforward. Screens are very intuitive. Have used it now for several weeks along the ICW. Love the ability to zoom/pan ahead, click to tide & current information, etc. Also, ran aground a few times and just hit "mark" to record exact location for future reference.
Cruising family at on 11/11/2012


Depth recorder: When installed correctly w/bronze thru-hull transducer, reads to 900 ft at 40 MPH!
Chart plotter: Reads the satellites perfectly through the hardtop w/o external antenna, flush mounted in dash.
Radar: MUCH better return images than previously installed radar

Garmin's technical assistance is outstanding!
Sea Sharp at on 11/11/2013

Great Deal!!

Perfect all in one GPS/radar. Can be mounted in many places and is easy to view.
irishman824 at on 03/03/2011

Awesome Unit!

Execellent product and great combo setup.
Joe at on 11/11/2010

Negative Reviews:

Unsuited for most sailboat mounts

I would Love to have a new product with this combo - charting plus radar in a compact case.

Downside (and buried deep in the pdf install manual) is the Compass Safe Distance of a minimum of 32 inches. That's over Two and a Half Feet.
That can be done on the wide dash board console on many power boats, but not at all for binnacle guard mounting on a sailboat. And that's the norm for sailboats built since wheel steering became common in the late 70's.

Garmin changed to a powerful permanent magnet to hold their chip door closed, several years ago. As professional marine electronics retailers say, "What the H___ were they thinking!"

Some WM staff are indeed up front about this, many are not, and a few try to deny it.

When not in use or when (and regardless of brand they all can cease) it stops working, you MUST remove it from a mounting position near you old reliable ship's compass and store it elsewhere. And if you store it in a drawer, make darned sure it's nowhere near your AP compass either. (!)
Still Learnin' / Still Sailin' at on 08/08/2012

Neutral Reviews:

Great for the money

This is a great unit for the price. However, if you look on the screen shot you will see that the "mark" key is next to the menu key. This is bothersome, while under way ( rough seas) and attempting to hit menu the unit will mark useless waypoints all over the place which is extremely annoying to me. The key should be located in an area that doesn't otherwise get touched. The way points can be individually deleted but if your running in rough water and need your hands you might end up marking 4 useless waypoints every time you go for the menu key, which you have to hit every time you change function. You can individually delete them but that could take forever, so with this unit you could be asking "is this my live bottom I've marked or some other number or is it one of those useless waypoints from the mark key being hit against your will over and over again?" This complaint really applies to offshore fishing in the carolinas. But overall, this unit is great for the price and all the other functions are above average in quality.
Fortunate Son at on 04/04/2011