i make small batches of mead, i use 1 gallon glass carboys and 2 gallon brew buckets. can i take a reading from the carboys or buckets?
I have been using SensorPush thermo-hygrometer for over a year, still no complaints.
In every case, the temperature and humidity readings were close to or exactly the same as previously calibrated instruments. This is no small feat, particularly with humidity, which can be notoriously difficult to measure accurately. Probably because of its small size, the SensorPush almost instantly reacts to any temperature or humidity change.
But an hygrometer measures humidity not the specific gravity or alcohol content of a solution. Why would measuring the ambient humidity be important when the mead is as near to 100 percent liquid as possible? And how would this help the OP decide whether the OP should be using his or her fermenter as the testing cylinder for the hydrometer?