This is an interesting concept.
If the CRR is low enough, I can see some situations where it would be useful, but for those of us that already check our tires ~weekly, maybe not so much?
I wonder how well this would work in conjunction with a good flat sealant (I have been really happy with Flat Attack)?
https://airwinder.com/
The tech page explains how it works:
https://airwinder.com/technology/
I'm not going to get in on this kickstarter, but I'm going to watch and see if this actually makes it to market.