5 ms·

This is the best one I've seen: https://boseansafety.com/products/air-quality-monitor-home-t-z01 https://boseansafety.com/products/air-quality-monitor-home-t...

• jondwillis 3y ago
  Invalid SSL cert, ironic for that domain name! edit) nevermind, on public wifi
  • dewey 3y ago
    Works for me on iOS Safari, maybe something on your end?
  • TonyTrapp 3y ago
    No issues here with the certificate (Firefox / Windows).
  • sinuhe69 3y ago
    It uses a certificate issued by Let's Encrypt, so you might need to update your root certificates list.
• lysp 3y ago
  This seems to look very similar to generic ali express sensors: ie. Quick search: https://www.aliexpress.com/item/1005005944910617.html https://www.aliexpress.com/item/1005005944910617.html Generally things without user manuals, or proper specifications are either directly from there, or rebadged from there.
  • dahart 3y ago
    Ali express has the Bosean, and the specs appear to be different from the link you found. https://www.aliexpress.us/item/3256803168407076.html https://www.aliexpress.us/item/3256803168407076.html I see multiple knock-offs of the version you linked, the packaging looks different than the Bosean. Is the lack of a brand or company name printed on the device a potential clue about which one’s a knock-off?
• pxx 3y ago
  It seems unlikely it has a true CO2 sensor for that price point (it could, but the bom price of just the module is over $20). The co2 "equivalent" from VOC sensors is pretty crappy in my experience.
  • bananapub 3y ago
    while true that actual CO2 sensors are expensive, this device doesn't even claim to have one
    • mikestew 3y ago
      Scroll down, and it shows a CO2 measurement on the screen.