Uploaded August 2026 | Updated September 2026, 2 weeks ago

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How can a $30 Air Quality Monitor have more sensors inside than a $200 one? Spoiler: it doesn't.

- Air Quality Detector: amzn.to/4x3BZLN
- Partycle: https://partycle.cloud
- AirGradient Go: airgradient.com/portable
- Air Lab: networkedartifacts.com/airlab

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Contents:

00:00 - How is this thing so cheap
02:06 - Testing sensor accuracy
04:10 - A teardown reveals the secret
06:03 - At least it has a decent PM sensor
08:39 - Not a CO2 sensor
09:39 - The peel
11:09 - AK23 is cheap