Fish Hawk X4 Probe

Fish Hawk Electronics
In Stock
(26 reviews) Write a Review
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The X4 Probe uses a sonar signal to send water temperature, and trolling speed information at the downrigger ball to the boat.

  • Detects speed changes of 1/10 MPH
  • Probe uses a 70kHz sonar signal to send data
  • Water-activated probe extends battery life 
  • Powered by four AA batteries
  • Includes swivels to attach downrigger weight
  • Epoxy potted electronics with double O-ring battery cap
  • Compatible with legacy Model 840  
TWO-YEAR WARRANTY Fish Hawk Electronics are fully guaranteed against any defect in parts or workmanship for 2-years from the date of purchase for the original owner. This warranty does not cover improper use, failure to maintain, accidents, or loss.
In the box:
Probe, protective bumper, snap swivels to attach weight
Country of Origin:
Made in USA


  • 4
    X4 Probe

    Posted by James Forrest on 1st Jun 2023

    Love the product. use to have a depth raider and thats absolute garbage compared to your product. I have broken the probe a couple times now. Was told thats caused by not unscrewing the cap after use. I wasn't aware of that until I spoke with other fisherman that have had the same problem. Was wondering if using lithium ion batteries would make a difference?

  • 5
    Probe and Display

    Posted by Fred Brush on 17th Mar 2023

    The fish hawk is amazing unit. Don't know how i fished without it. Karen Fine was amazing and help me out right away and was very knowledgeable. I had my new unit back in my hand in a few days. She tested it right away and found out issues and got me a new unit out to me without a hitch. Thanks again Karen and I will be bragging about my fish hawk to my buddies again.

  • 5
    Fish Hawk X4 Probe

    Posted by Wes Scott on 28th Aug 2022

    Worked perfect right out of the box with my 20 year old 840 display and transducer setup

  • 5
    Fish Hawk X4 Probe

    Posted by Scott Eisner on 18th Aug 2022

    My son and I have been fishing salmon on Lake Michigan for years. We thought we were doing pretty well. Several years ago I installed the Fish Hawk X4 and it took us to the next level. Knowing the water current direction, speed and temp down deep makes a huge difference. No more guessing and if I had the choice between a fish finder and the Fish Hawk, I'd choose the Fish Hawk hands down.

  • 5
    Fish hawk

    Posted by wendell buhr on 29th Jul 2022

    Excellent product wouldn't be with out it

  • 5
    X 4 probe

    Posted by Bob Lewis on 25th Jul 2022

    I was blown away by the support staff and customer service. The follow up was second to none. Thanks for being so prompt and helpful. I would rather fish without a fish finder than my Fish Hawk.

  • 5

    Posted by Gary Cuperus on 22nd Jul 2022

    I enjoy the quality of people working at Fish Hawk. They are excellent to work with.

  • 5
    Replacement probe

    Posted by Matthew S LaDousa on 19th Jul 2022

    I fish pretty hard and as long as there's no ice I'll keep taking the boat out. I had my probe for years and she finally gave up the ghost. The staff at fish hawk got me setup with a replacement in a minimal amount of time. It works great and helped us out an 18lb king in the box on its maiden voyage. Thanks Fish Hawk!

  • 5

    Posted by Bill on 18th Jun 2022

    The probe is excellent! Only design flaw is the battery connector. When reconnecting the battery pack it’s easy to misalign the connector. The 3 connector plug should be made fool proof so you can’t inadvertently fry the sending unit. When changing batteries while the boat is rocking it’s easy to do this with big fingers in a small battery compartment. Tanya’s excellent customer service helped us out and we had our unit back with no delays. Thank you!

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