[ynotbrusum]

I have no science to back this up, nor can I say it helps my chest freezer cycle less, but I have the thermistor in a foil bubble wrap and affix it to the side of the fermenter.  Ideally, a thermowell could be used, but I don't use standard carboys for fermenting (I have 14 gallon plastic barrels for 10 gallon batches with a simple grommeted airlock).

YMMV, of course.

[beersk]

Gotcha.  I'm starting to feel like it's okay as long as the ambient temperature stays between 58F and 63F.  The beer should be fine.  Don't see a reason to worry otherwise.

[a10t2]

Gotcha.  I'm starting to feel like it's okay as long as the ambient temperature stays between 58F and 63F.  The beer should be fine.  Don't see a reason to worry otherwise.

The only potential problem with controlling the air temperature is that it could make the compressor cycle more often than you want. Measuring the beer temperature would make the controller cycle for longer, less often.

[beersk]

Gotcha.  I'm starting to feel like it's okay as long as the ambient temperature stays between 58F and 63F.  The beer should be fine.  Don't see a reason to worry otherwise.

The only potential problem with controlling the air temperature is that it could make the compressor cycle more often than you want. Measuring the beer temperature would make the controller cycle for longer, less often.

I think I'll try this out soon.  How would it attach to the fermenter? Tape wouldn't hold...

[Hokerer]

I think I'll try this out soon.  How would it attach to the fermenter? Tape wouldn't hold...

I attach mine by using enough rubber bands to stretch all the way around the fermenter.

[Pi]

I think I'll try this out soon.  How would it attach to the fermenter? Tape wouldn't hold...

I attach mine by using enough rubber bands to stretch all the way around the fermenter.

Velcro will work, but you'll have to wait for when the caroby/fermenter is room temp

[dano14041]

I think I'll try this out soon.  How would it attach to the fermenter? Tape wouldn't hold...

I attach mine by using enough rubber bands to stretch all the way around the fermenter.

I use blue painters tape to attach mine. Once the temp is stable (wort temp has come up to fermentation temp) and there isn't any condensate on the carboy it works fine; before then, not so much.

[beersk]

I use the brew haulers for my carboys, so I stuck the probe between one of the straps and the carboy.  It seems to be working pretty well.  Might stick with that, see how it turns out.
Thanks, fellas.

[linenoiz]

I use a couple paper towels folded up to make a pocket for the probe, then just use duct tape to hold it to the side of the bucket. Never had a problem with it falling off.

[ynotbrusum]

String with a slip knot or just a long bungee cord works great.  Just remember to remove the probe before lifting out the carboy - I've done that before!