Environmental Chamber Espec EPX-2H Specifications Interior Volume 8 ft3/225 L Interior Dimensions 19.7″ x 23.6″ x 29.5″ 500 x 600 x 750 mm Exterior Dimensions 37″ x 48″ x 76″ 950 x 1220 x 1930 mm Temperature Range -70 to 180°C -94 to 356°F Humidity Range Average Change Rate 6°C/min Heating 4°C/min Cooling -40 to 125°C (Empty) Heat-to-room Peak 25,000 BTU/hr Maximum Sound Level 76 dBA a 1 m Temperature Fluctuation ±0.3°C (up to 100°C) Humidity Fluctuation ±2.5 Temperature Gradient ±0.7°C (up to 100°C) Humidity Gradient ±3% Air Flow 400 CFM Power 208/230V 3ph