These are sturdy double walled units with outer chamber made of M.S.Sheet duly powder coated/painted with inner made up of anodised aluminium or S.S.Sheet. The gap between inner & outer chamber is filled with high grade glass wool to avoid thermal losses. Beaded heating elements are placed in ribs, at bottom & sides. Inner chamber is provided with ribs for adjusting perforated shelves to convenient height. The door is fitted with glass viewing window to facilitate inspection of sample without disturbing the test Temp. is controlled by hydraulic type capillary thermostat or Microprocessor digital temperature Controller from ambient to 90ºC ±1ºC. An L shaped prismatic thermometer is fitted to unit for reading the chamber temp. Air ventilators are also provided on the sides of unit. To work on 220/230 volts A.C.Supply.