Dust sensor
Dust sensor PPD4NS/PD42NS/PPD42NJ, optical principle, capable of detecting dust particles larger than 1 micron; two output modes to meet different sensitivity requirements; in clean environments, Vout outputs a high-level signal (4V); 5VDC power supply; particle detection range: up to 8000 pcs/283ml (particles larger than 1 micron).
