Outer wall is made of M.S. sheet duly finished in white stoving enamel/powder coated paint with mat finished color combinations and inside of stainless steel. The gap between inner and outer wall is filled with high grade mineral glass wool. Temperature range from ambient to 70 C is controlled by thermostat with an accuracy of 0.5 C. The unit is provided with manual tilting device, so as to tilt the tray holding the eggs. To work on 220/230 volts A.C. supply.