LAE electronics offer a range of refrigeration and defrost electronic controllers which are used in a wide range of food applications to control temperature in as an example food display storage cabinets where precise control temperatures are required to be maintained to stop spoiling of food items. Carel another manufacturer offers a range of defrost as well as freezer display control units for simple on and off control. If you have a more complex refrigeration or food temperature control requirement, take a look at the various products that Eliwell produce for full food cold room temperature control.