Datasheet

2
1. Introduction
This Dust Sensor measures the Particulate Matter level in air by counting the Lo Pulse Occupancy
time(LPO time) in given time unit. LPO time is in proportion to PM concentration. This sensor can
provide you pretty reliable data for air purifier system because it's still responsive to particulates
whose diameter is 1um. Note: This sensor use counting method to test dust concentration but not
weight method, and the unit is pcs/L or pcs/0.01cf.