3 ms·

https://www.purpleair.com/ https://www.purpleair.com/ seems to work great for me!

• peepopeep 8y ago
  Can the sensor be used indoors or does it have to be their "indoor sensor"? The products look interesting but the site does not inspire confidence.
  • jryan49 8y ago
    I'm using their indoor sensor, works well
  • pwarner 8y ago
    Their site is simple but it works great. I "installed" my outdoor sensor by laying it on my desk inside and plugging it in. Will move outside when fires end.