The Inkbird ITC-310T-B is an affordable dual relay output temperature controller perfect for fermentation applications, or for your custome keezer build! It is packed with features to help you keep your beer at just the right temperature, producing perfect lagers and ales alike. It has dual display windows for displaying both set temperature and actual temperature, and can display temperatures in either Fahrenheit or Celcius. Both high and low temperature alarms are available on this unit, as well as compressor delay protections for refrigeration control and sensor fault alarm. Plug and Play, this has plugs for both heating and cooling devices, such as heating pads and refrigerators. It has temperature calibration, and can be set for individual heating and cooling differentials. It also comes with a 2m (6.56 ft) NTC sensor cable and probe for easy temperature detection. In addition to all these features present on the ITC-308 model, the ITC-310 has 12 programmable time periods that you can program with 12 different temperatures on a timer. Making temperature control safe, reliable, easy AND programmable, the Inkbird ITC-310 is perfect for your fermentation needs!