Double Walled highly Insulated Inner Chamber made of Stainless Steel (304 Grade), Outside made of M.S. duly Painted complete Temp. range 5°C to 50°C under normal Conditions & 15°C-50°C , Accuracy ± 1°C when lights from both sides and top are ON. Humidity range 55% to 90% ± 5% supplied with 0-24 Hours Timer. Temperature and Humidity is controlled by Electronic Digital Temperature and Humidity Indicator cum Controller. Refrigeration is done by CFC free Compressor and Heating is done by S.S. Tubular Heaters.