The Evolve Single Gang RF Scene Controller is a programmable, 5 button device that provides command and control of up to 5 – RF network scenes and is a component of the Evolve Guest Controls (EGC) lighting control system. This Wall Mounted Transmitter is designed to work with other Evolve enabled devices. Evolve nodes of other types can be included in the network and will also act as repeaters to increase the range of the network. There are no field repairable assemblies on this unit. If service is needed, the unit must be returned where purchased.