This Dust Sensor gives a good indication of the air quality in an environment by measuring the dust concentration. The Particulate Matter level (PM level) in the air is measured by counting the Low Pulse Occupancy time (LPO time) in given time unit. LPO time is proportional to PM concentration. This sensor can provide reliable data for air purifier systems; it is responsive to PM of diameter 1μm.
With tweaking, you can also separate out particles 2.5uM and above.
Use the Pi2Grover board to connect to the Raspberry Pi
|Standby Current Supply||90||mA|
|Detectable range of concentration||0~28,000 / 0 ~ 8000||pcs/liter / pcs/0.01cf|
|Operating Temperature Range||0~45||°C|
|Output Method||Negative Logic, Digital output, High: over 4.0V(Rev.2), Low: under 0.7V||-|
|Detecting the particle diameter||>1||μm|
|Dimensions||59(W) × 45(H) × 22(D)||mm|
|Humidity Range||95% rh or less|