The Humminbird PiranhaMax 197c is one of the earlier models by Humminbird, but it is still among the most inexpensive and compact fish finders with a transducer.
It might be old, but it is still cheap and compact. Piranha Max 197c does not come with GPS or maps or charts, so its functions are only for finding fish.
Pros: The Humminbird PiranhaMax 197c is the perfect choice for you. This device has dual beam sonar, an IP-X7 waterproof rating, and numerous sonar functions that will help you find your following catch. It’s compact and easy to use so that it won’t take up much space on your boat. And with its budget-friendly price point, this fish finder is perfect for any fisherman seeking to get their hands on one of these devices!

Basic features of Humminbird PiranhaMax 197c
Specifications | Humminbird 197c |
Display Screen Size | 3.5″ Diagonal |
Display Type | color TFT with a 256 color range |
Standard Sonar | DualBeam |
Transducer | Transom XNT 9 28 T |
Sonar Frequency | 200 kHz / 28° and 455 kHz / 16° |
Maximum Depth Capacity | 600 feet (183 m) |
Waterproof rating | IP-x7 |
Power Output | 300 Watts (RMS) |
Power Input | 10-20 VDC |
Temperature | Built-In Transducer |
Weight | 2 pounds |
Dimensions | 8 x 16 x 12.3 inches |
Display Screen
Humminbird PiranhaMax 197c has a tiny color display. It is 3.5 inches wide and has 240 x 320 pixels. There are 256 colors in the color palette, and the screen has an LED backlight. That makes it easier to see images at night or when there is lots of sun.
IP-X7 is a waterproof rating for this device, which means it should be able to withstand being splashed by water, rain, and even total submersion in 3.3ft of water for up to 30 minutes. However, the product doesn’t have an “X” on its label, and it has not been tested against solid objects like sand or dust.
The Humminbird PiranhaMax 197c does not have a touch screen. It only has four buttons that can be operated by pushing the buttons on the bottom of the screen.
Sonar & Transducer
Humminbird PiranhaMax 197c includes a dual-beam 2D sonar that can scan 200 and 455 kHz. You can, however, only utilize one of the beams because it is only dual-beam and not dual beam plus.
The unit has an XNT 9 28 T transducer that covers both frequencies and is compatible with a transom mount and temperature sensor. It also has a sensor that can take the measurements of the topwater temperature. The power cable is 20ft long.
PiranhaMax 197c only uses a 2D sonar. It does not have down imaging technology. If you’re searching for a similar product, the Humminbird PiranhaMax 197c Di is worth considering. Both sonar beams are conical and operate at 28° for 200 kHz and 16° for 455 kHz.
This device can reach up to 600ft. It is impressive for such a small device. Although it can give you a clear bottom reading up to 30 mph, you will get the best pictures at 5-6 MPH.
The PiranhaMax 197c may be configured to standard sonar functions, including Fish ID+, Structure ID, Bottom View, Whiteline, and three different alarms (battery, fish, and depth).
The fish alarm lets you select between small, medium, and large fish (or all at once) and will alert you when the device detects a fish that matches the parameters.
What do I get in the box?
The Humminbird Piranhamax 197c fishfinder comes with the following items:
Documentation
12V battery,
Mounting bracket
Installation hardware
transducer,
cable, and suction cup.
Conclusion
The PiranhaMax 197c is a basic fish finder for beginners and experienced kayak or canoe anglers, ideal for freshwater fishing in the lake or ocean.
It comes with an XNT 9 28 T transducer covering 200 and 455 kHz, but the traditional dual-beam 2D sonar cannot cover both frequencies simultaneously.
The maximum depth is 600ft, making it suitable for off-shore fishing based on the bottom structure.
This PiranhaMax 197c review exposed a very affordable fish finder that is good for smaller fishing boats, inland fishing, and for going on minor off-shore ventures/expeditions.
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