Old Fish Hawk Help

[Gman315]

Old Fish Hawk Help

My neighbor gave me an old Fish Hawk Thermo Troll temp unit with probe but I absolutely cannot find any info about it or a manual on how to use it. Is this a wireless unit and if so it looks like I'm missing an antenna or some other component on the back side? Any help would be greatly appreciated!

[Legacy]

Looks like it belongs in a museum somewhere!!!

Sent from my XT1585 using Lake Ontario United mobile app

[Gman315]

I just thought it would be fun to see if it works!

Sent from my XT1585 using Lake Ontario United mobile app

[Sk8man]

Even back then the Fishawks were pretty good products. Back in the seventies I had the battery operated model that you reeled up and down with the thermistor that went to 100 ft and was quite accurate. Unfortunately I left the 9 volt battery in it over the winter and it corroded inside and it was history after that