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Low Cost CO2 Sensors Comparison: Photo-Acoustic vs. NDIR
2023-03-22 06:02:16 (Hacker News)
Source: Hacker News
AirGradient Open Source Air Quality Monitor for CO2 and PM2.5 Measurements
2023-01-29 10:42:30 (Hacker News)
Source: Hacker News

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