I have a Fibaro CO sensor on my z-wave network which is relatively low-pain and lock-in free. In my opinion CO monitors are a bit different from say CO2 or VOC

I have a Fibaro CO sensor on my z-wave network which is relatively low-pain and lock-in free. In my opinion CO monitors are a bit different from say CO2 or VOC in that they should really show 0 ppm at all times. If they don't you want them to alert you first and optionally record the data/send it somewhere. That's why I am fine with this device being treated more like a smoke detector than an IoT device.