Keeping the right temperature during the fermentation is essential to the performance of your yeast. Imagine being able to just glance over at your fermenter and instantly know what temp it’s sitting at. With the Fermometer you get just that! It is a liquid crystal thermometer that adheres to the side of a carboy, bucket, or even stainless conical to tell you the fermentation temperature. (Fahrenheit only, not available in Celsius.)