The poweradjust 3 is a versatile single channel fan or pump controller that can also be used as an aquabus expansion device for an aquaero 5 or aquaero 6 unit. Mainly designed for Laing DDC and D5 pumps as well as powerful fans, the poweradjust can be used for controlling a variety of devices with up to 30 Watts (up to 36 Watts with optional passive heat sink) at 12 Volt DC. For example, a single poweradjust 3 unit (ultra version) can be used for temperature dependent control of nine airstream fans on an airplex evo 1080 radiator.