Temperature control for beer kits

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I use the inkbird to control temperature with the probe on the outside of the fermenter and the rapt pill (not the controller) to monitor temperature and gravity.
I ferment inside a converted freezer.
The only reason I asked was that if you used the Rapt controller with the Rapt pill you wouldn’t need to use the probe and the pill would monitor the temperature.
I currently use either a Rapt controller or an inkbird with the probe inside the thermowell. The temperature is confirmed by my ispindel and it is usually within a couple of tenths of a degree.
I’ve tried both ways and personally Iget better control this way.
I suppose it depends on each individual set up so if it ain’t broke don’t fix it I suppose. 👍🏼
 
Do you folks with Inkbirds probe the air temperature or the beer temperature? I imagine in a small sealed chamber like a fridge the air will change temperature quite a lot faster than the beer (due to thermal mass as mentioned above). So with the probe in the air I expect the Inkbird will be switching on and off much more often than if it is in contact with the beer and possibly the beer temperature lags behind air temperature by an hour or more.

I have a ~20cm thermowell in the lid of one of my fermenters. It's okay for a cheapo thermometer I've got, but it's not a big enough bore for the Inkbird probe. Currently I don't have a fridge (as it rarely gets over 20C where I ferment and we're going into winter anyway), so taking air temperature is pretty useless - was planning to get another larger thermowell and use that, then add a cheap fridge to the setup at some stage.
As others have said, I tape the Inkbird probe to the side of the fermenter, covered with a patch of bubble wrap.
 
Ok quick update on this. I have now made several beers in my converted freezer with great success. I am no longer getting that tang in the beer. I've done ginger beer, Yorkshire bitter, lager and stout and also a winter ale. All have came out really well. I've got the temp set to heat at 18.5 and to cut out at 19. I just use a heat pad in the bottom of the freezer which is only 20 watts so very cheap to run.
 
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