Power PS-1 Power SupplyOne Amp linear power supply with integrated battery backu… PS-EXITFor all 8000 and 3000 Series exit devices with Motorized … PS-LR Power SupplyLinear power supply with optional battery backup for 3000… PS-SE Power SupplyPower supply with optional battery backup for all 3000 an… 4612 Power Transfer DeviceThe 4612 Power Transfer Device channels electrical wiring… Power AccessoriesRectifier, Transformer, Piezo Horn