A Particulate Matter sensor is an electronic device specifically designed to detect the concentration and/or particle size distribution of suspended particulate matter (PM for short) in the air. It is widely applied in fields such as environmental monitoring, health protection, and industrial process control.

颗粒物传感器是一种专门用于检测空气中悬浮颗粒物(Particulate Matter，简称 PM)浓度和/或粒径分布的电子设备。它在环境监测、健康防护、工业过程控制等领域应用广泛。