ARB announced earlier today their new TPMS for vehicles not currently equipped with this technology. It looks to be pretty cool and will be available in September. You can read about it on the OutdoorX4 website here:
https://outdoorx4.com/news-and-events/arb-releases-new-tire-pressure-monitoring-system/
https://outdoorx4.com/news-and-events/arb-releases-new-tire-pressure-monitoring-system/