The Pocket Particle AQI 2.0 Sensor allows customers to measure air quality levels at their homes, businesses, client facilities and public locations. The state of the art sensor is small and light weight and provides information about ambient air quality exposure levels. The sensor measures both PM2.5 and PM10. Our second generation sensor communicates with your device using Bluetooth® for a convenient wireless operation. We have also added VOC and eCO2 sensing for more complete air quality survey.