Model SHOP STBM-271 - Sensor Module for Particle and Dust Measurement - Datasheet

The STBM-271 is a sensor module for detecting dust, fi ne dust and pollen in the ambient air from a particle size of 1 μm. Using light scattering detection techniques, the highly sensitive optical sensor detects the smallest particles such as dust, smoke, cigarette smoke, pollen or even house dust, spores and mite dust. The air is sucked in by the built-in radiator and irradiated with the infrared light of an LED. A lens focuses the measuring point of the optical sensor. In relation to the particle concentration, the scattered light is converted into a pulse signal in the module. The connection is made via a 2mm plug connection.