AIRVALENT - Black

Really good overall and the best co2 monitor I have seen. Listing positives and negatives - hopefully constructive for improvements later.

Positives
Notifications are great.
Still relatively works during travelling when still inside my bag; showing high co2 when on a train; showing high co2 before plane takeoff and then reducing and stabilising off once air filtration starts during the flight.
Smallest co2 monitor I have seen. Great for travellers.

Negative
The glass on the back is fragile and quickly broke after a small drop, but it still works. Probably plastic would have been better even if less visually nice.
The charging port feels like an Apple Magic Mouse situation where it’s on the bottom so it can’t be used whilst it’s charging. In this case it can still be used but you can’t stand it upright whilst it’s charging.

Feature requests
Customise ppm level of notifications rather than only 2000
Would love documentation on how to access the monitor with Bluetooth with code eg rust library would be great. want programmatic access to do things automatically!
Low battery notifications