PM2.5 Air Particle/Dust Sensor - PMS 5003

The digital particle concentration sensor uses the principle of laser scattering. It means that the laser light on the particles in the air and making the scattering, while collecting scattered light at a particular angle , resulting in scattered light intensity with time curve. In the end, equivalent particle diameter and the number of particles with different diameter per unit volume can be calculated by microprocessor based on MIE theory.

The optical system uses high-performance modules and light-sensitive components. The scattering principle enables accurate measurement and reduces errors, mainly output as the quality and number of each particles with different size per unit volume, the unit volume of particle number is 0.1L and the unit of mass concentration is μg/m³.

There are two options for digital output: passive and active. Default mode is active after power up. In this mode sensor would send serial data to the host automatically , the time interval is 200-800ms, the higher of the concentration, the shorter of the interval.

The active mode is divided into two sub-modes: stable mode and fast mode. If the concentration change is small the sensor would run at stable mode with the real interval of 2s, the same side air inlet and outlet simplifies the structural design and dustproof sensor structure design. and Dust prevention sensor structure design.

WITNESS real-time, reliable measurement of PM2.5 dust concentrations! (PM2.5 refers to particles that are 2.5 microns or smaller in diameter.) This sensor uses laser scattering to radiate suspending particles in the air, then collects scattering light to obtain the curve of scattering light change with time. The microprocessor calculates equivalent particle diameter and the number of particles with different diameter per unit volume.

We give you the sensor box as well as the cable and a 0.1" / 2.54mm breakout board so you can wire it easily. You only need power plus one data pin (for the UART TX). Power is 5V, logic is 3.3V Arduino Code Using the PM2.5 with Arduino is a simple matter of wiring up it to your Arduino compatible microcontroller, installing the Adafruit PM25AQI (https://adafru.it/Mej) library we've written, and running the provided example code. This code will get you started with any Arduino compatible (e.g. Arduino UNO, Adafruit Metro, ESP8266, Teensy, etc. As long as you have either a hardware serial or software serial port that can run at 9600 baud.  

Specification:

• Supply voltage: from 4.5 V to 5.5 V
• Power consumption (work): below 100 mA
• Power consumption (standby): below 200 μA
• Sensitivity:
  • 50% - 0.3 μm
  • 98% - 0.5 μm and larger
• Resolution: 1 μg/m³
• Work temperature: od -10 °C do 60 °C
• Humidity (work): 0-99%
• Size: 50 x 38 x 21 mm

Set includes:

• PMS5003 sensor (covered with protective film)
• Cable

Pinout:

Pin 1 from inside. Pin 8 on the outside. 8-pin connector (1.25mm raster).

More Resources

PM2.5 Air Quality Sensor 

PMS 5003 Series Datasheet