The HM3301 sensor determines the particulate matter concentration in the air by means of the scattered light process from a particle size of 0.3 μm.With this sensor, you are able to supply real-time measured values as well as to carry out continuous measurements and then send them to the connected microcontroller via the I2C interface.It can be operated with 3.3V and 5.5V and is perfectly suitable for integration due to its architecture.Further technical details and exact dimensions can be found in the data sheet in the download area. https://elecena.pl/product/28015663/joy-it-optical-fine-dust-sensor-hm3301-module 2025-03-12 https://elecena.pl/product/28015663/joy-it-optical-fine-dust-sensor-hm3301-module 2025-09-17