Duwei YKM100 Multifunctional Air Quality Transmitter is an air environment comprehensive index monitor independently developed by our company, which is used to detect PM2.5, PM10, temperature, humidity, air pressure, light, TVOC, O2, carbon dioxide (CO2), carbon monoxide (CO), formaldehyde (CH2O) and other parameters in the air environment. It basically covers all the indicators reflecting air quality. Transmitter using imported sensors and computing chip, with high precision, high resolution, good stability.