Infrared Particulate Matter Sensor, PM2.5

High-quality infrared particle matter sensors can be used to detect the concentration of PM2.5 in the air. SUCH infrared PM sensor uses the principle of light scattering to detect the concentration of particles in the air (particle size between 1~10μm). The particle concentration range is 0~1000μg/m³, with a long life and fast response speed. It is suitable for household air purifiers, car air purifiers, residential and commercial air conditioners, HVAC systems, various indoor air quality monitors and other equipment.

Feature

• Strong anti-interference ability, low power consumption.
• The infrared PM sensor has a fast response time of only 8 seconds.
• Wide measurement range, 0~1000μg/m³ range.
• Integrated MCU, can output the concentration value.

Dimension (Unit:mm)

Wiring

Working Principle

Infrared PM sensors are designed based on the principle of light scattering. When infrared light strikes particulate matter, light scattering occurs. The sensor detects the signal change of the scattered light and calculates the concentration of the particulate matter based on the intensity of the electrical signal. The electrical signal is proportional to the intensity of the detected light. The electrical signal is amplified by an amplifier, and then a series of calculations and calibrations are completed by a microcontroller, which finally outputs the value of the particulate matter concentration.