Outer wall is made up M.S. sheet duly painted and inside of stainless steel. The gap between inner and outer wall is fitted with high grade mineral glass wool. Temperature range from ambient to 70OC Temperature is controlled by microprocessor based PID Digital Temperature Indicator-cum-controller with an accuracy of +0.5OC The unit is fitted with a geared motor and an automatic timer for automatic tilting of the trays loaded with eggs.