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Air Quality Detector with CO₂, TVOC, Temperature and Humidity Monitor Model:USB Product image:Product information: Model: K01 Measurement object: CO2 TVOC temperature humidity Measurement accuracy: standard Size: Standard (mm) Portable co2 ppm meters carbon dioxide detector co2 TVOC HCHO AQI monitor multi gas analyzer Dust particle counter is a simple and reliable measuring instrument that combines ease of use and performance. Our monitor allows you to track 4 key air quality factors: TVOC, HCHO, CO2, environmental, and AQI. Powered by a