Fish Hawk TD

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Find fish by finding their preferred water temperature! The Fish Hawk TD reveals water temperatures from the surface all the way to the bottom. Two operation modes display the water temperature every 5-feet, or at the maximum depth. Temperature and water pressure sensors sample multiple times per second for unmatched speed and accuracy. 

Key Features
  • Deploy by attaching to a fishing line
  • BY TEMP mode shows water temperature at 5-foot intervals 
  • BY DEPTH mode records depth and temp to the nearest foot to measure running depth of tackle
  • Sealed lithium battery provides 7-years of daily use and has a 20-year shelf life
  • Measures in Fahrenheit/feet or Celsius/meters
  • 300-foot maximum operating depth 
  • 2.7 ounces
  • For fresh or saltwater use
  • Includes attachment snap
  • Two-year warranty
  • Made in USA
  • US Patent US 8,875,570 B2
Outside USA:
Duties & taxes due upon delivery


  • 5
    FishHawk works like a charm!

    Posted by Robert Klamt on 9th Jan 2021

    This little unit does exactly as advertised. I used to work for the water quality board and did lake surveys, so was looking for an inexpensive way to get a temperature profile to help with fishing. This does the trick. One thing to be wary of--the instructions say not to let it get below freezing. I did with my first one (left it in the truck overnight), and it died.

  • 5
    Fish Hawk TD

    Posted by Steve on 23rd Sep 2020

    This device works as advertised. Very useful for finding your target fish species favorite temperature depth.

  • 5

    Posted by Unknown on 19th Jul 2020


  • 5
    Fish Hawk TD

    Posted by Jared Schuster on 12th Jul 2020

    I used my Fish Hawk TD today for the first time. Found the sweet spot right away and caught rainbows and browns. This is a great tool.

  • 5
    Priceless tool

    Posted by D on 20th Jun 2019

    This instrument has singlehandedly helped me to catch a heck of a lot more salmon. I drop this down and find the magical 50 degree mark and begin trolling above and below this temp. This is an invaluable tool that helps you to reduce a 70 mile X 30 mile lake (Michigan) to a much smaller water by zeroing in your fishing around the temp's. BRAVO FishHawk.

  • 5
    Fish Hawk T D

    Posted by Bob Jackson on 26th May 2019

    It does everything it claims to do. Great

  • 5
    Pleasant Surprise

    Posted by Gary on 14th Apr 2018

    Yes, I was apprehensive, but... I read the instructions and followed them. Easy operation and was able to determine temperature down to 55'. Now my only concern is that my fishing line might break.

  • 5
    Fishhawk TD

    Posted by Rick Kotz on 29th Nov 2017

    Works as advertised; short, easy instructions. Makes finding the productive water column a snap. No more guessing where the thermocline is located. Temperature at depth helps identify different species based on preferred temps. Great product.

  • 5
    Very handy device

    Posted by Unknown on 24th Jul 2017

    I recieved my TD and tested it just yeterday while out for lakers, it performed as described. The trout were located in the temp zone between 48 and 52 degrees and roughly 65' over 150'. Sure helps cut down on the guess work ..... it didn't help me boat any however !! :)