Laser Dust Sensor pm sensor

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https://www.rainbowsensor.cn/products/smart_sensors/mems_sensors/laser_dust_sensor_PM1_PM2_5_PM10_sensor.html

Introduction
MD202 laser dust sensor is a digital universal particle concentration sensor, which can be used to obtain the number and mass of suspended particles in the air per unit volume, namely the particle concentration (μg/m³), and output as a digital interface. The sensor can be embedded in various instruments or environmental improvement equipment related to the concentration of suspended particles in the air to provide timely and accurate concentration data.
The sensor uses the principle of laser scattering, that is, the laser is irradiated on the suspended particles in the air to generate scattering, and at the same time, the scattered light is collected at a specific angle to obtain the curve of the scattered light intensity with time. Then the microprocessor uses the Mie-based (MIE) ) Theoretical algorithm to obtain the equivalent particle size of particles and the number of particles with different particle sizes per unit volume.

Size: 48x37x12mm

Feature
 All-round shielding design, stronger anti-interference ability, the same side of the air inlet and outlet, customers do not need to design the air duct
 Minimum resolution particle size 0.3 microns
 Ultra-thin thickness, ultra-quiet
 Zero error alarm rate
 Real-time response
 Accurate data
 Long life

Application
 Air quality monitoring equipment, portable instruments, air purifier
 Fresh air ventilation system, air conditioning, smart home equipment
 Hospitals, hotels, schools and other public places

Technical Parameters