#air-quality-monitors on Hacker News

2 stories tagged air-quality-monitors, newest first.

Screenshot of airgradient.com: What we learned making a plastic injection mold with a Chinese mold maker

What we learned making a plastic injection mold with a Chinese mold maker (airgradient.com)

439 points by ahaucnx 3 years ago | 171 comments

AirGradient blog post by Achim Haug sharing lessons and tips from making plastic injection molds for its air quality monitors with Chinese mold makers.

injection-molding manufacturing china airgradient

Screenshot of airgradient.com: Air quality monitors: paying more does not get you more accuracy

Air quality monitors: paying more does not get you more accuracy (airgradient.com)

320 points by ahaucnx 3 years ago | 177 comments

AirGradient blog post by Achim Haug arguing that more expensive air quality monitors are not necessarily more accurate than cheaper ones.

air-quality-monitors airgradient sensors pm2-5

#air-quality-monitors on Hacker News

What we learned making a plastic injection mold with a Chinese mold maker(airgradient.com)

Air quality monitors: paying more does not get you more accuracy(airgradient.com)

What we learned making a plastic injection mold with a Chinese mold maker (airgradient.com)

Air quality monitors: paying more does not get you more accuracy (airgradient.com)