Double walled with inner chamber made of S.S and outer of thick PCRC sheet duly enamel painted. Temperature range from ambient to -20C is achieved by hermetically sealed compressor. Body is mounted on a sturdy angle iron frame and is mounted on castor wheels. Unit is fitted with solid State Digital Temperature Indicator-Cum-Controller. Horizontal Chest type models are supplied in a single compartment where as vertical models are supplied with three stainless steel storing shelves.