I chose the Qingping Air Monitor Lite ($100) specifically because it can connect to HomeKit, but it doesn’t require it and you can use it totally fine without e

I chose the Qingping Air Monitor Lite ($100) specifically because it can connect to HomeKit, but it doesn’t require it and you can use it totally fine without ever connecting it to the network! Though you might need to connect it once if you want to modify default settings like changing it to Fahrenheit. I actually find the device to have a really responsive offline interface that you can use by swiping the top of it. To give you an idea of why I wanted a “smart” one because I know on HN it’s a polarizing topic: I can include it in my HomeKit dashboard and see it from the other room or when I’m not home, get alerts when it reaches a certain level, record data automatically, and trigger automations like turning on my air filter.