Description from MoreBeer: “This digital temperature controller will allow you to precisely control the temperature of your fermentation, or a pump on your All-Grain System.

To control ferment temperatures you can place the probe inside the space that is being cooled or heated (often a refrigerator) or you can place the probe directly into the ferment using our Stopper Themowell, FE624. You can change from cooling to heating mode directly from the digital control panel. When in cooling mode, and hooked up to a refrigerator or other cooling device, the controller turns the compressor on when the ambient temperature rises above your set point. When in heating mode and hooked up to our FermWrap (preceeding page) the controller turns on the heater when the temperature drops below your set point. A FermWrap around a fermenter or inside a unplugged refrigerator can be the ideal solution for those cold winter ferments. To control a pump when mashing you would install a thermowell in your mashtun. This can be done in our welding shop or, if you have a coupler in your kettle, you can install our Coupler Thermowell, FE622.

The unit features an adjustable differential down to within one degree in both heating and cooling modes. This means you can precisely control an environment to within one degree of your set point.

The included sensor probe monitors the temperature while the digital readout displays it in either Fahrenheit or Celsius. The sensor probe is 1/4 in diameter and works well with the Stopper or Coupler Thermowells. Temperature Range of -30 to 220F.

We also use this digital controller in conjunction with our stainless steel conical fermenters and Brewing Sculptures. With the fermenters it monitors and regulates our electronic cooling units through a thermowell that is permanently installed in the side. With the Brewing Sculptures it can monitor and regulate Mash and Hot Liquor tank temperatures by turning pumps on and off.”