Found in the wild: absurdly low price → $24.99 (Banggood). 9 in 1 PM2.5 PM10 HCHO TVOC CO CO2 Meter Digital Temperature Humidity Tester LCD Carbon Dioxide Monitor Air Quality Monitor – Black.Updated: 12-07-2025
Banggood
Warehouse in China.9 in 1 PM2.5 PM10 HCHO TVOC CO CO2 Meter Price: $24.99
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9 In 1 Air Quality Monitor CO2 Meter CO TVOC HCHO PM2.5 PM1.0 PM10 Temperature And Humidity Measurement Carbon Dioxide Detector $15.85
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9 In 1 Air Quality Monitor CO2 Meter CO TVOC HCHO PM2.5 PM1.0 PM10 Temperature And Humidity Measurement Carbon Dioxide Detector $22.89
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ABEZ 9 In 1 Portable Air Quality Meter PM2.5 PM10 CO CO2 TVOC HCHO AQI Temperature Humidity Tester Color Screen, Black Easy To U $24.20
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A22I 9 in 1 Portable Air Quality Meter PM2.5 PM10 CO CO2 TVOC HCHO Temperature Humidity Tester Color Screen, White $24.96
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B45C 9 in 1 Portable Air Quality Meter PM2.5 PM10 CO CO2 TVOC HCHO AQI Temperature Humidity Tester Color Screen, White $25.44
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A73T 9 In 1 Digital Temperature Humidity Tester PM2.5 PM10 HCHO TVOC CO CO2 Meter Wifi LCD $25.95
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A60F-9 In 1 Portable Air Quality Meter PM2.5 PM10 CO CO2 TVOC HCHO AQI Temperature Humidity Tester Color Screen $28.98
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9 In 1 Air Quality Analyzer CO2 Meter CO TVOC HCHO PM2.5 PM1.0 PM10 Temperature And Humidity Measurement Carbon Dioxide Detector $28.99
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TuYa WiFi 9 in 1 PM2.5 PM10 HCHO TVOC CO CO2 Meter Digital Temperature Humidity Tester LCD CO2 Detector for Air Quality Monitor $29.10
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9 in 1 Air Quality Monitor CO2 Meter Carbon Dioxide Detector CO2 CO TVOC HCHO PM2.5 PM1.0 PM10 Temperature Humidity Detection $29.75
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9 In 1 Air Quality Monitor CO2 Meter CO TVOC HCHO PM2.5 PM1.0 PM10 Temperature And Humidity Measurement Carbon Dioxide Detector $29.78
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MOLF 9 in 1 PM2.5 PM10 HCHO TVOC CO CO2 Meter Digital Temperature Humidity Tester LCD $31.65
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1 Piece 9 In 1 Air Quality Monitor High Precision PM2.5 PM10 HCHO TVOC CO CO2 AQI Temperature Humidity Meter (White) $32.46
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1 Piece 9 In 1 Air Quality Monitor LCD Display PM2.5 PM10 HCHO TVOC CO CO2 AQI Temperature Humidity Meter (White) $32.88
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ABIS-Air Quality Monitor Indoor,9-In-1 Air Quality Meters for CO,CO2,AQI,TVOC,HCHO,PM2.5,PM10 for House Kitchen and House $33.49
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9 In 1 Air Quality Monitor CO2 Meter CO TVOC HCHO PM2.5 PM1.0 PM10 Temperature And Humidity Measurement Carbon Dioxide Detector $37.99
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9-in-1 Air Quality Monitor CO2 Meter CO TVOC HCHO PM2.5 PM1.0 PM10 Temperature And Humidity Measurement Carbon Dioxide Detector $38.74
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