https://wccftech.com/download-ios-12-2-beta-2-for-iphone-ipad-heres-how/

Apple has released iOS 12.2 beta 2 for iPhone, iPad and iPod devices. It’s a developer-only release and available over the air.

If you’ve been using the first beta of iOS 12.2 on your iPhone, iPad or iPod then you can download iOS 12.2 beta 2 right now. It’s available as an over the air update, and those enrolled in the Apple Developer Program can go ahead and download the full pre-release IPSW file as well from the dev center.