DFRobot Gravity PM2.5 Air Quality Fine Dust Sensor

This is an air quality particulate matter sensor from DFRobot. The sensor can measure and categorize various particulate matter particles of different sizes, and then provide the concentration value via the I2C interface. Particles of size PM10 (2.5-10 µm), PM2.5 (1.0-2.5 µm), and PM1 (0.3-1.0 µm) are weighted differently, as larger particles are partially retained by the mucous membranes in the nasal and throat areas. The sensor operates on the principle of laser scattering, meaning that the laser illuminates the airborne particles to create scattering and simultaneously collects the scattered light at a specific angle to obtain the curve of the intensity of the scattered light over time. The microprocessor then determines the equivalent particle size of the particles and the number of particles of different sizes per unit volume based on the MIE theory algorithm. The module is excellent for air monitoring in kitchens, heated rooms, bathrooms, or for measuring particulate matter pollution outdoors.

Technical Details:
Manufacturer: DFRobot
Manufacturer SKU: SEN0460
Sensor Type: PMS9103M
Voltage: 5V
Max Operating Current: 100 mA
Standby Current: <2 mA
Particle Measurement Range: 2.5-10 µm, 1.0-2.5 µm, 0.3-1.0 µm
Particle Counting Efficiency: 50% @ 0.3 µm, 98% @ ≥0.5 µm
Concentration Measurement Range: 0-1000 µg/m³
Standard Volume: 0.1 L
Response Time: <1 s
Operating Temperature: -10 °C – 60 °C
Operating Humidity: 0-95%
Dimensions: 67 x 40 x 14 mm
Weight: 53 g

Delivery Includes:
1x Gravity PM2.5 Air Quality Sensor
1x I2C/UART connection cable.