Finding or Selecting the Right Fish Finder

How to find and catch more fish, quickly and
easily, with your fish finder review guide

Simply by browsing through this site you will notice that there is a huge selection of fish finders, ranging from affordable, basic models to expensive top of the range items. We hope that this article will help you select the corrrect
fish finder for you.

Right Fish Finder

How do you intend using your fish finder? This is important.

If you are using your fish finder in a small rowing boat then you will need a portable fish finder. Technology these days means that it is now possible to incorporate many functions into small units. Manufacturers such as Garmin,
Eagle and Humminbird for example are producing portable fish finders with GPS capabilities for reasonable prices.

How you position your fish finder in your row boat is down to personal choice but the unit should be easily visible as you sit in the boat. I prefer to have the fish finder positioned in front of me so that I can glance up and see the unit. The space you have available in your boat will help you decide which fish finder will be appropriate for you and your boat.

Do you need a color display?

As technology becomes cheaper the option to have a color display on your fish finder is now much more affordable. Color diplays mean that the picture you get of the water under your fish finder is much more clear. There is less dubiety over what your display really means.

Single Frequency or Dual Frequency?

You will notice that fish finders are described as either single frequency or dual frequency. Dual frequency means that the fish finder transponder sends out both a 50khz and a 200khz sonar signal, while single means just a 200khz signal.

You will need a dual frequency unit if you are fishing in deep water, up to 200 feet, or in salt water. The 50 khz signal will probe salt water better and will also give a better indicator in the deep water than the 200khz, and the unit will give the back-up of the 200khz signal if required.

However, if you are fishing only in fresh water and in depths of less than 200 feet then the cheaper single frequency 200khz transponder fish finders will be suitable.

Do You Need GPS Options?

Many fish finders are now manufactured with GPS, WAAS and mapping options built in. Whether you need these is dependent on where you like to fish. If you are fishing in an area that you are not familiar with then GPS functions are a must. You can map points on your journey out which you can then follow on your way back. You can also program in co-ordinates which will give you a path to follow if you are lost. You can, of course, save the co-ordinates of your secret hot fishing spots so that you can return at a later date.

As with all electronic items, technology has caused a situation where you get a much better fish finder today than you would have just a few years ago, and for much less dollar.

Bottom Line Fish Finder

Bottomline Fishin Buddy 1200

The Bottom Line Fish Finder – the Fishin Buddy 1200 is the right machine when your on the go. Perfect for mounting on any boat with it’s easy to use adjustable telescopic shaft C-clamp mounting system.

Bottom Line Fish Finder

The Fishin Buddy feels solid and sturdy in the hand (measuring 5 1/2″ wide, 10″ deep, and a shaft length of 32″ collapsed and 46″ fully extended) although with batteries the unit weighs a mere 5lbs.

Finding You the Best Deals for The Bottom Line Fish Finder Fishin
Buddy 1200

As a matter of fact, you don’t need a boat at all. The Bottom Line Fish Finder’s mounting system means you can use it in any type of boat without having to drill holes and fix it.

On a canoe it fits on the side easily, while on a pontoon it will fit handily on the front. On a float tube with its simple adapter you can strap it on wherever suits. It can be used on dinghies, rowboats or just on the dock to evaluate fish activity
a distance away.

The Fishin’ Buddy is able to operate for around 40 hours on 3 batteries, and with the backlight, the Fishin Buddy can be used even in total darkness.

Readings from the Fishin Buddy are fairly accurate, the Depth and Side Finders seeing up to 120′ to the side and 240′ in depth, while the water temperature is also displayed on a screen which is slightly grainy but sill perfectly useable.

The fish alarm feature was our other slight concern. While the Fishin Buddy shows symbols indicating fish sizes from small to medium to large and at varying depths, it can misinterpret non-fish objects in shallow waters. We thought we had found a large shoal – it was only some floating garbage!

The Bottom Line Fish Finder is a well developed tool which helps you find fish, at an excellent price and with lots of features. Recommended as long as you use it as a complimentary tool to help your fishing, rather than rely on the readings.

Electronic Fish Finder

Electronic Fish Finder

How does an electronic fish finder work?

Some 75 years ago the US Navy developed a new technology that would come to revolutionise the way that anglers spend their time. The technology that allows electronic fish finders to work is called sonar, and initially it was used to find submarines at great depths under the ocean.

Electronic Fish Finder

Some 30 years later, and a very clever man realised that the technology could be used to sense the position of fish below a boat, and the first electronic fish finder was produced for the average angler.

An Electronic fish finder will use sound waves transmitted through water. When the sound wave hits the bottom and returns to the receiver, the depth of the water can be calculated. If the sound wave hits an object between the boat and the bottom then the depth of this object (hopefully a fish) will be indicated.

The original electronic fish finder used a rotating light that would flash to signal the bottom or an underwater object, while later units led to paper graphs to display depths.

What about the features on a new electronic fish finder?

Today, with new technology changing the way that the electronic fish finder works and is used, LCD digital monitors are built into the fish finder. The greater the number of pixels on a screen, the better the detail is displayed on the screen.

The first incarnation of LCD screens have been improved, to the extent that using the new Bottom Line 5100 electronic fish finder has been described as watching a 25″ underwater television, such is the quality.

The range of features and enhancements available on electronic fish finders is wide, with units priced between under $100 and over $2000. For example, the Smartcast fish finder (left) brings basic electronic fish finder technology to a wrist-mounted receiver at a value price, while the feature-packed Lowrance LCX-19C is perhaps the ultimate fish finder with every conceivable feature included, going deeper and with greater accuracy. Another important feature of the LCX-19C is the water surface temperature guage, particularly useful in spring when the bass are spawning.

What can an electronic fish finder do for me?

With just a quick reference to the fish finder, the angler can see what is beneath the boat – lots of fish or just some deep empty water.

Today, with the enhancements of the newer LCD units, very fine detail along with additional features are available in different models at various price ranges. Almost all anglers have at least one type of fish locator on their boat and many have two.

However, perhaps the main change to the electronic fish finder has been the advent of the GPS fish finder, which allows the fisherman to navigate unknown waters with the aid of Global Positioning Systems.

Click here to browse a range of over 85 electronic fish finders from variety of manufacturers. Alternatively, have a look at our reviews on this site by browsing the manufacturer sections at the top of the page.

Eagle Fish Finder

Eagle Fish Finder

Eagle Electronics started manufacturing fish finders back in 1982 and now, by using Eagle, fish finders are available that make the best use of both sonar and GPS technologies for all levels of experience and all budgets.

Eagle fish finders are easy to use, feature-packed, affordable and accurate. Exactly what is needed to make your days’ fishing easy.

From the compact new Eagle Fish Finder Cuda 128 at under $100 to the powerful Eagle Seacharter Fish Finder with superb features like GPS combined with sonar for under $500, you are sure to find an Eagle Fish Finder to suit your needs and budget.

The newest Eagle Fish Finder – the TriFinder® 2 has the widest, highest-resolution underwater viewing yet, with 3-times the coverage to the left, right and under your boat. Up to 150° of fish-finding coverage!

Eagle Fish Finder
  • Tracks to depths of 800 feet
  • Displays depth and position of fish targets to
    the left, right and below your boat, and hidden in weeds and other


  • 4″ (10.2 cm) diagonal screenFilm
    SuperTwist LCD
  • High-definition 240×160 resolution
  • Backlit screen and keypad
  • 16-level grayscale


  • Incredible Eagle® 3-Beam
    BroadView™ transducer delivers up to 150° of fish-finding
    coverage with high sensitivity settings
  • Depth capability to 800 ft*
    (244 m) with 1500 watts of peak-to-peak power
  • TargetTrack™ feature displays
    depths of individual suspended targets and their locations – to
    the left, right and underneath your boat
  • FishReveal™ feature exposes
    fish targets hidden in surface clutter, weed beds, thermoclines,
    and other types of underwater cover
  • HyperScroll™ feature locates
    and displays fish targets at higher boat speeds
  • Advanced Signal Processing (ASP™)
    automatically adjusts your settings for the best sonar picture
  • Patented GRAYLINE® separates
    fish from nearby structure and bottom
  • Advanced Fish I.D. shows underwater
    targets in different sizes of fish symbols
  • FishTrack™ displays target
    depth readings above fish symbols
  • Selective on/off sonar alarms:
    Shallow, Deep, and Fish


  • Advanced new receiver design
    offers enhanced sensitivity and target detail, as well as greater
    resistance to electrical interference
  • High-speed screen updates during
    depth range changes provide smooth, continuous underwater viewing
  • Internal back-up memory for
    key sonar settings
  • Completely sealed and waterproof,
    even for use in harsh saltwater environments
  • Full one-year warranty

Eagle Fish Finder TriFinder 2 Manual Eagle Fish Finder TriFinder 2 Press Release Eagle Fish Finder Parts – customize your Fish Finder with parts and accessories

The Eagle Fish Finder TriFinder 2 usually sells for around $179. Our specially selected and recommended suppliers often offer special deals and rebates. Please click here to check for the best and most up-to-date prices for the Eagle Fish Finder TriFinder 2.

Fish-Finder-Review only recommends suppliers who meet our three criteria,
so you get a great deal:
1. Provide the cheapest possible shipping
2. Drive prices as low as possible.
3. Guarantee what they sell.

Fish Finder Watch

Humminbird’s new RF30 Wrist Mount Smartcast – the “fish finder watch”.

Fish Finder Watch

At last – a fish finder designed specially for the kayak and float-tube user.

When the bulky, feature-filled fish finders are just to awkward to carry on board a small craft, take a look at Humminbird’s “fish finder watch”.

See not only what is under your boat, cast the remote Smartcast transducer into an inaccessible area to assess its fishability.

Humminbird’s latest range of fish finders were christened “Smartcast” when they were launched – smart cast because of the remote transducer which could be “cast” away from the angler, to relay information back to a display, in a “smart” fashion to the angler.

Want to see if its worth persuing the fishing in an isolated spot. Cast the transducer out, then pull it back when you’ve got the answers.

The RF10 was launched to great aclaim, but the paddlers still needed something smaller…

… and Humminbird responded with the RF30 wrist display fish finder.

The “fish finder watch” display is just 1¼” by 1″ but the 48 x 32 pixel
screen is still highly detailed. And you’ll find all the important features of the RF10 on the RF30

The Humminbird “fish finder watch” serves a real need for kayakers by allowing us to use the same technology that our friends on bigger craft have been for years.

Its size, ease of use, and price mean that its going to be a huge hit.

Furuno Fish Finder

Furuno Fish Finder

Furuno Fish Finder

The LS4100TM Furuno fish finder is a dual frequency machine designed to give the small boater all the power and performance that you come to expect from Furuno.

The unit features a 5 inch high-definition silver bright LCD screen for detailed pictures of fish and bottom structure.

The LS4100TM has a resolution of 240(H) x 320(V) pixels combined with a dual frequency 50 and 200 kHz transducer delivering 300 W RMS (2,400 Watt peak-to-peak) output power.


  • 5 inch Mono LCD Screen
  • 1500 Foot Range
  • 50 & 200 kHz Frequency
  • 300 W Power Output
  • Single High or Low Frequency or Dual Frequency
  • Bottom-Lock Expansion
  • Bottom Zoom
  • A-scope
  • Marker Zoom
  • Two Nav Data Display Modes
  • Manual or Two Auto Modes, Fishing or Cruising
  • Water Temperature
  • Mini-Navigator Mode when hooked up to a BBWGPS
    GPS/WAAS receiver

The Furuno Fish Finder LS4100TM usually sells for around $210. Our specially selected and recommended suppliers often offer special deals and rebates. Please click here to check for the best and most up-to-date prices for the Furuno Fish Finder LS4100TM and other Furuno products.

Fish-Finder-Review only recommends suppliers who meet our three criteria,
so you get a great deal:
1. Provide the cheapest possible shipping
2. Drive prices as low as possible.
3. Guarantee what they sell.

Garmin GPSMAP 2110 Review

Garmin GPSMAP 2110

GPS + WAAS enabled, value-priced, large-display color chartplotter

Garmin GPSMAP 2110

Where fishing can be an exhilarating experience if you possess the right kind of tools, it can be mundane and ultimately futile if you have a diminished repertoire. Plotting trails, routes and waypoints on paper can be cumbersome and tedious. You are well off to do away with such old-fashioned naviga

Garmin GPSMAP 478 Review

Garmin GPSMAP 478 Review

Garmin GPSMAP 478 –

Garmin GPSMAP 478

GPS + WAAS enabled color chartplotter for saltwater fishing, with combined street mapping

As far as modern day fishing techniques are concerned, an electronic chart plotter is virtually indispensable. The Garmin GPSMAP 478 is an incredible GPS navigator for both land and sea. It is a seamless combination of a color chart plotter and navigator. The GPSMAP 478 aids fishermen, be they recreatio

Garmin Fish Finder

Garmin have been designing GPS equipment for use in the marine and fishing worlds since 1990.

Garmin Fish Finder

Mariners and anglers have increasingly come to rely on the quality and reliability of technology of (manufacturers such as Garmin) fish finders and the use of sonar in a line of sounders which can fit most boats and budgets.

Garmin fish finders have been twinned with emerging GPS technology for a number of years with the results that Garmin fish finder/GPS combinations can help with the locations of fish and with marine navigation. These handheld and fixed-mount units combine innovative technology and ease-of-use operation to help you get the most out of your time on the water.

Boaters will find an unbeatable combination of performance
and value in our state-of-the-art marine products.

Mariners and anglers worldwide have come to rely on
Garmin products to make being on the water more enjoyable.