If your sensor is the non-plus version, then there is no Australian Product Id added (which is 12289)
The AUS Product Id 12289 is only added for the z-wave plus version.
You have a couple of options: either send a request to Athom here https://www.athom.com/en/support/ that will perhaps take a while for them to add the product Id.
Or second option, add the product ID yourself and side load the app via CLI method. For instructions see here: [HOW TO] CLI install method
Even if you go with the second option I would still send a request to Athom so they can add it for future updates.
