You can try to use Waydroïd to install the APK.
But proprietary apps like this one are not supported on Ubuntu Touch.

You can try to reach out to the company and ask them to release their protocol or an API.
I would add that I'm encouraging everyone to do so because those connected devices handle a lot of personal data that are often (very) poorly protected. And obfuscation is not a security measure, it's a security risk.

IMHO there should be an international law forcing manufacturer to open source the protocol used to communicate with their hardware.
For security reason, privacy reason and maintainability.