Airvalent CO2 monitors.

https://airvalent.com/

Exciting to see how small these are getting, similar size to apple airpods case. Looking forward to seeing this tech ~1-3 versions from now, where air quality monitoring can just be part of a smartwatch.

The sensor itself is quite small (but not yet flat enough to be in a watch...), the bulk of it is the controller board/bluetooth/screen/battery.

Could probably do a small keychain thing though.

Good read: https://forum.breathesafeair.com/t/photoacoustic-co2-sensor-accuracy-scd40-scd41/20/

Sounds like they lose some effectiveness as temperature changes (vs the Aranet4 sensor), and I bet as elevation changes too (since they rely on pressure in a chamber).

A doodler and computerer. I like permissive/permissionless open source, smart contracts, p2p systems, room-scale VR, and NixOS.

shazow.net

Currently: WhatsABI

The sensor itself, if anyone is curious: https://sensirion.com/products/catalog/SCD41

I’m waiting for Apple Watch to integrate this, is that possible?

How is the CO2 level related to air quality?

If environmental impact in general is the concern, then what is the impact of manufacturing, shipping and discarding an expensive gizmo?

aranet 4 probs the most useless thing i ever bought 😭

Just as expensive as aranet 4 though, looking forward to seeing this tech getting cheaper 😄

not enough to monitor soon they will purify the air

This is interesting. Can you share all of cool tech things you own..

The average of the four values ​​is the most accurate number

Air quality is so important, will buy this stuff

I would really like people to care more about and protect nature

This is nice thing. Also oxygen level monitoring would be nice to add too. There is lower oxygen level in big cities. Lower then 21%. Especially when heating.

https://www.ambientworks.io/

This one is pretty cool

Oh shit it’s the teenage engineering flow