This MKII Temperature Controller is perfect for brewers who want precise control over their brewing process. You can use it during fermentation to adjust temperatures for diacetyl rests and cold crashing, and also for step mashes with electric mashtuns and pumps. It's great for those who are into home - brewing and want to take their skills to the next level. It has a dual input for simultaneous heating and cooling control, can be programmed for up to 12 steps, and has adjustable temperature differentials. You can choose between Fahrenheit and Celsius. It also works well with an electric distilling column and has high and low temperature alarms for safety.