The bridge cannot be more than 3 – 4 meters from the door itself and only works over 2.4Ghz. In Australia you will need a US to AUS power adapter, the bridge works on 240v for us down under too. App (using the bridge) has some delay when not at home but does work and also is compatible with an apple watch too ;).

https://www.amazon.com/ULTRALOQ-Bluetooth-Fingerprint-Electronic-Deadbolt/dp/B082TNN1QB