Google translate says:
Keeping the compost running in the winter requires a lot of hobby and I would like a relief to monitor the temperature of the composter. Do I dare put a tag on thermal compost? The temperatures rise to roughly to 50-55C degrees. Maybe put it in a moisture-proof bag and attach it to the inside of the lid, for example:
P.S. The first tag monitors the inside temperature of the hibernating turtle box and also commendably reports position changes:
In terms of temperature, 50-55 degrees shouldn’t be any problem (the rating of the parts used in the tag is between -40 and +85), but if the humidity is constantly around 100%, moisture may condense inside the tag. I’m not an expert on compost, but I would think the relative humidity inside the thermal compost is much lower because of the higher temperature so I don’t think that will be a problem.
In any case, short-term (around days or even weeks) of around 100% moisture will not normally have time to condense enough moisture inside the tag. For almost five years I have had one tag in the sauna and one in the yard where the humidity in Finnish winters is often 100% for a long time and there have been no special problems with either