It's very simple -- something like https://www.amazon.com/Moisture-Humidity-Compatible-Atomic-Market/dp/B00TMD43BS/ref=sr_1_cc_3?s=aps&ie=UTF8&qid=1507756372&sr

It's very simple -- something like https://www.amazon.com/Moisture-Humidity-Compatible-Atomic-Market/dp/B00TMD43BS/ref=sr_1_cc_3?s=aps&ie=UTF8&qid=1507756372&sr=1-3-catcorr https://www.amazon.com/Moisture-Humidity-Compatible-Atomic-M... Due to the volume of the pot, it would be difficult to get a true moisture reading, so I place the sensor directly under the spout in order to have noticeable changes.