Airgradient's popular indoor air quality sensors are the first devices of their kind to be officially certified as "Works with Home Assistant". These open-source devices do not require an internet connection and enable local automation with air purifiers, air conditioners, or humidifiers and dehumidifiers.
I’m looking on that company’s website but not seeing it. I see the “R PRO-1 PoE mmWave Multisensor” and the “TEMP PRO-1 PoE Temperature and Humidity Sensor,” but those have different capabilities. Apollo’s “AIR-1 Air Quality Sensor” is also WiFi/USB-C power, not PoE.