Waveshare Dust Sensor Detector Module with Sharp GP2Y1010AU0F Onboard for Measuring PM2.5 Air Purifier Air Conditioner Monitor Supports Arduino Sharp GP2Y1010AU0F onboard, detecting fine particle larger than 0.8?m in diameter, even like the cigarette smoke Low power consumption, analog voltage output, the output level is linear with dust density Embedded voltage boost circuit to support wide range of power supply Sensitivity : 0.5V/(100?g/m3) Demo code offered