The Aura Systems 70 Pint Portable Dehumidifier Automatic restart allows unit to be used with humidity controllers. Easy to use digital display with temp and humidity readings, removable washable filter, 1 speed fan motor, powder coated metal casing for long life & a heavy duty compressor. All Aura Systems dehumidifiers need surge protection and a dedicated power circuit. In the event of a power failure, a spike in voltage may occur when the power is reinstated. This can damage the circuit board which is not covered under warranty.