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CO₂ Sensor Technologies: Optical NDIR vs Photoacoustic vs Thermal Conductivity
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2
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4
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March 12, 2026
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Scrambled alien looking LCD display yesterday? (AirGradient One)
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14
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444
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March 12, 2026
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Compatibility of formaldehyde sensor (Sensirion SFA40) with AirGradient One Indoor Monitor
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5
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135
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March 12, 2026
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New version of indoor unit, request for CO sensor!
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5
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345
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March 11, 2026
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European distributor
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55
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19098
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March 10, 2026
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Help Us with the Wi-Fi Issue of Firmware 3.6.0
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68
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1450
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March 6, 2026
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CO2 S8 sensor not found in O-1PST
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13
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1707
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March 5, 2026
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Model number for CO2 calibration?
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30
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7745
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March 4, 2026
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MQTT configuration does not accept a trailing special character in the password
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2
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142
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March 4, 2026
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Airgrafient Display goes blank even when all options set to ON
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5
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131
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March 4, 2026
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Operating temperature of the outdoor unit?
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23
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3896
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March 3, 2026
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Local API not always responding to Get request
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2
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80
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March 3, 2026
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PM2.5 measurement value has suddenly disappeared
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1
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73
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March 2, 2026
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Do you ship to South Africa?
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1
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59
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March 2, 2026
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Suggestion for monitoring temp / humidity in attic
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3
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1263
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March 2, 2026
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Update on PMS5003 Calibrations
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42
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7549
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March 1, 2026
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Low Readings from Plantower PMS5003
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64
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8292
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March 1, 2026
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Should CEOs Code? I coded an iOS app in 8 weeks to find out
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4
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214
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February 27, 2026
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Connecting the AG to the Universal Devices platform
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0
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44
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February 27, 2026
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Recent change to API payload?
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2
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87
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February 26, 2026
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SGP41 not found after a power cycle
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4
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109
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February 25, 2026
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How Accurate is the Sensirion SGP41 TVOC Sensor?
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9
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607
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February 25, 2026
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AirGradient and the U.S. Tariff Changes
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12
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2164
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February 24, 2026
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Huge difference values of pm2.5 of map to dashboard
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3
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101
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February 24, 2026
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IQAir station intermittently stops updating while OpenAQ shows continuous data
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5
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108
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February 24, 2026
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01 PST Monitor is flashing Blue led 2 every second and another internal LED is flashing 1 every 5 seconds BUT DEVICE NOT SEE
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1
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64
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February 24, 2026
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O-1PST charging cable lenght
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9
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200
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February 23, 2026
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The Portable Air Quality Monitor We Couldn’t Find - Built Openly, Built Together
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12
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459
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February 23, 2026
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Performance of AirGradient OpenAir in humid climate
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1
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115
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February 23, 2026
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What is the current FW version we can upgrade to for the PCB 4.2?
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21
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3790
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February 22, 2026
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