And007

Hi, My Dad has a 2016 Landcruiser Sahara. In the manual, it talks about tyre pressure reading being displayed / transmitted to the dash computer(?), but my Dad says that the dealer never fitted the sensors to the car - apparently Toyota Australia didn't supply them - it was only for over seas markets. Is there any way to buy these and fit them to the car? Where do I start looking for them or does anyone have any suggestions on what brand / type needs to be fitted? Thanks, Andy.