“Works great and was shipped out to us immediately. Unfortunately getting it to mainland Europe took about a month due to the Brexit mess at the time, but well worth it to get something that's reliable outdoors. The data has been very useful for me in avoiding high local levels of (primarily) ozone, and seeing the best times to let some fresh air into the house.”
“Easy setup… sda/sck on a Lolin D1 mini, flashed with Tasmota. Easy intergration with Home Assistant… it is super sensitive… detected a scented candle burning in another room!”