It's been years since this was last posted and a good opportunity for Tasmanian OzBargainers to order one for free if they don't have one already.
A CablePI can protect you and your home by detecting a potentially life-threatening electrical fault called a broken neutral. They're free for our residential and small business customers.
Do you trust them?
It's a no from me.
https://www.abc.net.au/news/2015-10-12/fire-safety-risk-prom…