Please read the data sheet by selecting the link, below.
Simply plug into a power point of the circuit you want to filter, preferably the bedroom circuit.
The Alpha 5B will protect against dirty power frequencies created by internal sources, like power supplies, fluorescent lights, Internet modems, etc.
Only one filter is needed per circuit, which makes this high quality filter an economical choice.
The delivery will include the necessary converter plug to change from the German to the Australian system.