It is a tutorial showing how to use any uRADMonitor hardware with Home Assistant. It uses the internal webserver of the uRADMonitor devices that exposes a virtual JSON file with all the parameters.
I have the A and the A3.
Powered over PoE, work reliably feeding data into HA and grafana for long term trend analysis.
They work locally with co cloud egress or support required.
They ship calibrated but a I don’t have anything scientific to measure against.
What else would you like to know?
Are you using them inside or outside?
How does the built-in webserver look?
Can you post your yaml for the Rest API?
You have the two I was considering.
I will probably get the A first since I already have 2 PurpleAir for air quality; although that A3 does have a lot of sensors.