How to choose a fish finder for fishing – reviews of experts

The idea that it’s nice to look under the water and watch life processes of fish excites the consciousness of more than one generations of anglers. The Vedas are indeed all we know about the behavior of fish, all the properties that we attribute to them, based on speculation and ichthyological paradigms that It is considered to be an axiom. Take, for example, the thesis that in the fall, white fish rushes to the deepest areas reservoirs: it would seem, choose a point for fishing with the maximum depth and fishing for pleasure! However, not all so simple – for several hours the angler doesn’t see any bite – it seems that there is no fish. But in fact, for some, understandable only to her, reasons, the fish “freezes” halfway and does not want to sink to the bottom!

how to choose an echo sounder

Fishfinder. Principle of operation and basic elements

But how can a fisherman find out if there is a fish at the fishing point and how deep does it hang? The best way to solve this the task is to use the echo sounder – a compact instrument, intended originally for navigation, but found huge application among anglers.

The modern fishfinder consists of the following main nodes:

  1. The sensor is an emitter emitting ultrasonic waves and receiving reflected singal back. May have different connection methods – both wired and wireless, based receiving Bluetooth and WiFi signal;

  2. Central module including receiver-converter signal, amplifier, display module and many other functional elements. Receive the signal received by the sensor, amplify and process it, displaying it as understandable for the fisherman Pictures;

  3. A battery that serves as a battery for the entire system. IN Depending on the design of the echo sounder, the battery may be integrated In the device, either be remote. In the latter case, as a portable traction battery may act as a power source for an electric motor and other similar devices;

What are echo sounders?

Under the general name “echo sounder” hides quite a lot various devices that differ not only in their characteristics, but also functional purpose.

Classic Fish Finders

classic echo sounders

The most common and popular type of such devices. The above scheme is fully applicable to them. Here always there is a volume module with a screen, an external battery (like as a rule, remote) and a sufficiently large sensor connected to device with cable.


  • High versatility;

  • It shows not only fish, but also features bottom relief;

  • Long life from one battery charge;


  • Bulky devices requiring a separate box for carrying;

  • The most functional road devices;

  • The range of use is limited by the length of the cord;

Wireless Fish Finders


Compact models designed for coastal use. They are divided into two types: the first is the classic models, representing the central unit with a built-in battery and wireless sensor. The second type – compact devices, all whose components are hidden inside the sensor. As a screen, it uses a smartphone with software installed providing.


  • Compact size;

  • Charging from a power outlet or USB port;

  • Ability to cast from the shore at a distance of 40-50 meters;

  • High versatility;


  • Limited functionality due to the use of a weaker emitter;

  • The minimum operating time from one charge;

Winter fish finders

Winter Fishfinder

In general, these devices are a symbiosis of two the above classes. Winter models are compact dimensions, they also have a built-in battery, but the sensor is the same connects to the central unit via compatible cable.


  • Compact size;

  • Low price;

  • Unpretentiousness in operation;

  • High functionality;


  • Limited functionality;

  • Inability to use during coastal fishing;

  • Short time on a single charge;

The main criteria for choosing a fish finder

sounder selection criteria

Having determined the operating conditions, as well as the class devices that you need, it’s time to study in detail main characteristics of specific devices.

Screen resolution

As in a mobile phone, the higher the screen resolution – the a more detailed picture appears before the eyes. However, Meet here high-quality Amoled-matrix with FullHD resolution will hardly work out. Qualitatively considered a VGA screen (640×480 and 800×600 pixels), with a color depth of 65k. However, these screens are installed exclusively on the top, expensive models. The vast majority of budget models are equipped monochrome displays with a resolution of 160×160 or 160×320 pixels.

Power supply

  1. Finger-operated fish finders are the most compact and universal. You can replace the battery even while camping conditions. However, such models are almost always the most weak, and they also very quickly consume battery power;

  2. Models powered by a built-in battery in this regard better: with similar portability, they hold a charge much better. IN as the nuances highlight the need for regular recharging devices that are not easy to do in the field;

  3. Devices powered by external power the battery is the most functional and powerful, on a single charge they able to work a day or more. However, it will not do without pitfalls – such devices are bulky and heavy, they require a separate storage box and transportation.

Which one to choose – with one or two beams?

sonar rays

Another important parameter that directly affects reliability information displayed.

  1. Single beam models are affordable and very affordable. good functionality. They are able to scan the bottom under enough wide angle, showing the angler all the information he is interested in. They have one drawback – a wide beam (of the order of 45 degrees) is not able to thoroughly scan small, local recesses of the bottom, as a result of which they simply disappear from sight;

  2. Two or more ray models are much better in this regard. Single beam These devices have a considerable width and are designed to volumetric scan of the bottom. The second is narrow: it works exclusively under the boat and determines the slightest bumps in the bottom, displaying information on the screen. Such devices are much more functional, but they are more expensive.

Additional features

Modern echo sounders are equipped with the latest technology, turning from a portable sonar into a full-fledged fish finder complex. The function of detecting fish of a certain size, zoom and variable scroll speed, adjustable sensitivity and depth range, the ability to record GPS coordinates of a specific point and make a route, comparing depths with coordinates and drawing a detailed map pond – this is just a short list of what modern “can” echo sounders. The downside of all this charms is one – the high price: the higher the functionality of the device, the more expensive it will cost the buyer.

Rating of echo sounders for fishing

Having decided on the specific characteristics that are required from one or another echo sounder, as well as with operating conditions, time to bring some of the most interesting models that excellent value for money.

Best Classic Fishfinder – HUMMINBIRD PIRANHAMAX 4


A compact, portable model with a decent functionality. The device is equipped with a two-beam transducer (16 and 28 degrees, respectively), allowing you to “punch” the bottom at distance up to 180 meters, high-quality color display resolution 480×272 pixels, as well as a decent list of additional options. The device is clad in a fairly compact case and works from external power source.

Best Wireless Fish Finder – FISH FINDER FD 19


A portable device that will surely appeal to you lovers of coastal fishing. The central unit of the device and the sensor are not have a tight connection, they work through wireless transmission data. The radius of effective work is up to 70 meters. The sensor is equipped two beams operating at different frequencies and allowing scan the bottom at an angle of up to 90 degrees. For the conclusion received the information is answered by the FSTN-display with a resolution of 128×64 pixels, which more than enough for such operating conditions. One more The advantage of this device is the power supply circuit – the device works fine with four finger batteries and not requires an additional power supply.

Best Winter Use Device – MARCUM SHOWDOWN Troler


A compact device encased in a compact, shockproof body. Easy to fit in your pocket and provides the opportunity quick search promising for catching a point. Transducer for this models has a single-beam design designed specifically for ice fishing – its coverage angle is 20 degrees – the best option for scanning the bottom under the hole! Information the device displays on a bright and contrasting display with a resolution 128×64 pixels – not only depth is displayed here, but also water temperature, the presence of edges and changes in the bottom topography, and also the presence or absence of fish and its size. Device is working from 6 standard finger batteries and can be installed as ordinary batteries, and batteries of this type.

In the following articles, our experts tell you how to choose thermal underwear for outdoor activities and the secrets of choosing a coil for fishing.

Attention! This material is subjective opinion of the authors of the project and is not a buying guide.

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