Refrigerator/Freezer Thermometer 01432 Know exactly how cold it is in your refrigerator or freezer, or in a particular area of your fridge or freezer. The actual dial is 2-5/8 inches (82.6 mm) in diameter. A two-way hanger/stand on the 00652 allows for convenient placement, even in crowded refrigerators and freezers. This precision instrument features tough stainless steel construction and a measuring range of -30F to +70F.