Mounted on a study angle iron frame the inner chamber is made of thick S.S. and outer of mild steel duly enamel painted. The gap between the inner and outer wall is filled with high grade glass wool is order to prevent any loss of temperature. Fitted with ISI maked compressor for effective cooling. Heating is brought about by immersion type heating elements. Temperature range from 5*C to 9*C is controlled by digital temp. Indicator-cum-controller with an accuracy of _+0.5 C. A high speed Stirrer id fitted is fitted to maintain temperature uniformity. The lid of bath is insulated double walled fixed with hinges and is provided with locking arrangements.