SEM226V Mini Visibility Sensor

The smog is composed of many tiny water droplets and various fine particles in the air. The infrared light emitted from the light source is scattered by the water droplets and then detected by a highly sensitive detector. Within a certain range, the more water droplets or other tiny particles detected, the greater the intensity of scattered light. Calculated by embedded software, the light scattering intensity is converted into a standard visibility value.