Coldline Vision Retarder Prover - EN60x80 AF60/1M.USB Port: Allows for downloading HACCP data and updating software. Finishing: Exterior interior finishing and door handle are made of stainless steel. Insulation: 75 mm thick insulation, CFC HCFC free for environmental friendliness. Door: Self closing door with a reversible design and a 105 dwell. Magnetic door gasket that is easy to replace. Cooling Unit: Tropicalized unit capable of operating in temperatures up to +43C. Forced air refrigeration