CO2 PM2.5 Formaldehyde TVOC Temperature Humidity Meter Detector Accurate Tester
TVOC: 0～9.99mg/m³. PM2.5: 0~999ug/m³. Formaldehyde: 0~1.99mg/m³. CO2: 400PPM-5000PPM. Engineered with precisions and user friendliness in mind, this air quality tester boasts advanced and a clear display to keep you inform about your indoor.