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 provided with manual tilting device, so as to tilt the tray holding the eggs.