DC0001 is a dust sensor composed of an infrared optical sensing system.
Dust sensor PPD4NS/ PD42NS/ PPD42NJ, optical principle, can detect dust particles above 1 micron; two output modes to meet different sensitivity requirements; in clean environments, Vout outputs a high-level signal (4V); 5VDC power supply; detection range: up to 8000 pcs/283ml (particles above 1 micron);
The laser dust sensor is a digital general-purpose particulate matter concentration sensor based on the principle of laser scattering, which can detect the concentration of suspended particles of different sizes in the air (including PM2.5).