Double walled construction, Polyurethane foam (PUF) Insulation, Compressor: CFC free heavy duty hermitically sealed compressor, Temperature Range: +2°C to +8°C ± 1°C, Microprocessor based P.I.D. controller or Digital Temperature Controller cum Indicator controller Double walled door insulated and is fitted with magnetic gasket for air tight closing. Power input to be 220-240 Volts AC 50/60 Hz.