_lhermann’s avatar_lhermann’s Twitter Archive—№ 10,072

  1. …in reply to @polilluminato
    @polilluminato Turns out, this in particular is a German product: amazon.de/dp/B0C9R2SWDQ Look for CO2 concentration meter
    On twitter.com Twitter logo _lhermann’s avatar ❤️ 4 Favorites Mood 0