The test proposed on the website is NOT currently approved for use in Australia, and is unlikely to be approved for self-test use.
Quote from TGA:
"NOTE: In Australia, the supply of self-tests for most serious infectious diseases, including self-tests for COVID-19, is prohibited under the Therapeutic Goods (Excluded Purposes) Specification 2010. Testing for serious infectious diseases is best conducted in conjunction with a healthcare professional who can provide appropriate advice and treatment if required."
Quote from TGA: "NOTE: In Australia, the supply of self-tests for most serious infectious diseases, including self-tests for COVID-19, is prohibited under the Therapeutic Goods (Excluded Purposes) Specification 2010. Testing for serious infectious diseases is best conducted in conjunction with a healthcare professional who can provide appropriate advice and treatment if required."