Thanks, I think I'm just going to try this: Taylor Precision Products Wired Digital Indoor/Outdoor Thermometer
https://www.amazon.com/dp/B01924UGZI..._H1NxAb4H5Q9N8.
The display is not water proof but I'll try to seal it up. Then I just have to wipe the probe off when it gets scum on it. If It fails I'll only be out $9.00