Outer wall is made up of M.S. sheet duly painted and inside of S.S. the gap between inner and outer wall is filled with high grade mineral glass wool. Temp. range from ambient to 70°C is controlled by "JUMO"/ EGO" GERMAN capillary type 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 AC supply.