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Nova PM Sensor SDS011

The Nova PM Sensor SDS011 is a very recent Air Quality Sensor developed by Nova Fitness. It works on the principle of laser scattering and can get the particle concentration between 0.3 to 10μm in the air. This sensor consists of a small fan, air inlet & outlet valve, laser diode, and photodiode. It works with a nominal 4.7V to a maximum of 5.3 VDC supply voltage. However, it typically works with 5.0V DC voltage and requires a maximum of 100mA current. This sensor comes with the accompanying cable and 'USB to serial converter' for connecting the sensor to a computer directly if needed.


SDS011 Pinout Description 

Pin No.

Pin Name




Not Connected



PM2.5: 0-999μg/m³; PWM Output



5V Input



PM10: 0-999 μg/m³; PWM Output



Ground Pin



Receiver of UARTTTL@3.3V



Transmitter of UARTTTL@3.3V


Features and Specifications

  • Output: PM2.5, PM10
  • Measuring Range: 0.0-999.9μg/m3
  • Input Voltage: 4.7V to 5.3V
  • Maximum Current: 100mA
  • Sleep Current: 2mA
  • Response Time: 1 second
  • Serial Data Output Frequency: 1 time/second
  • Particle Diameter Resolution: ≤0.3μm
  • Relative Error: 10%
  • Temperature Range: -20~50°C
  • Accurate and Reliable: laser detection, stable, good consistency
  • Easy integration: UART output (or IO output can be customized), fan built-in


Note: Complete technical details can be found in the Nova Pm Sensor SDS011 Datasheet linked at the bottom of this page.



  1. PM2.5 GP2Y1010AU0F Dust Smoke Particle Sensor
  2. DSM501A PM2.5 Dust Sensor


SDS011 Sensor Overview

The Nova PM sensor is designed with a built-in fan to ensure proper air circulation to a chamber with a laser diode, where the size and amount of PM are determined. As mentioned earlier, it works on the principle of laser scattering. The air enters through the air inlet where a light source (Laser) illuminates the particles and the scattered light is transformed into a signal by a photodetector. These signals are then amplified and processed to get the particle concentration of PM2.5 and PM10. The laser diode used in this sensor is a high-quality diode and its service life is up to 8000 hours.

SDS011 Sensor



  • PM2.5, PM10 Detector
  • Purifier
  • Air Exchangers
  • Filtering system


2D Model and Dimensions

Nova PM Sensor SDS011 Dimensions

Component Datasheet

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