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How does a $35 monitor have more sensors than a $200 one?

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Source: Level 2 Jeff
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  • description: How can a $30 Air Quality Monitor have more sensors inside than a $200 one? Spoiler: it doesn't. - Air Quality Detector: https://amzn.to/4x3BZLN - Partycle: https://partycle.cloud - AirGradient Go: https://www.airgradient.com/portable/ - Air Lab: https://networkedartifacts.com/airlab Support me on Patreon: https://www.patreon.com/geerlingguy Sponsor me on GitHub: https://github.com/sponsors/geerlingguy Merch: https://www.redshirtjeff.com 2nd Channel: https://www.youtube.com/@GeerlingEngineering 3rd Channel: https://www.youtube.com/@Level2Jeff 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
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  • uploaded_at: 2026-08-26T14:21:52Z
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  • title: How does a $35 monitor have more sensors than a $200 one?

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