The gas detector PCE-AQD 20 is an ideal measuring device for monitoring the air quality at workplaces. The PCE-AQD 20 health and gas detector is ideal for continuous logging of air temperature, humidity, CO2, PM2.5 and air pressure. Measuring function - PM2.5 - Humidity - Temperature - CO2 - Air pressure - Memory: SD card max. 32 GB - Ideal for workplace monitoring - Alarm function