SDS011 Laser PM2.5 Sensor

Short Description:

The SDS011 using principle of laser scattering,can get the particle concentration between 0.3 to 10μm in the air. It with digital output and built-in fan is stable and reliable.

Product Detail

Product Tags

Working Principle

Using laser scattering principle:

Light scattering can be induced when particles go through the detecting area. The scattered light is transformed into electrical signals and these signals will be amplified and processed. The number and diameter of particles can be obtained by analysis because the signal waveform has certain relations with the particles diameter.

Technical Parameter

SDS011  Laser PM2.5 Sensor1
SDS011  Laser PM2.5 Sensor2

Product Specifications

1.Product size


2.Interface specification 

SDS011  Laser PM2.5 Sensor3
SDS011  Laser PM2.5 Sensor4

PS:The distance between each pin is 2.54mm.

The UART Communication Protocol

Bit rate: 9600

Data bit: 8

Parity bit: NO

Stop bit: 1

Data Packet frequency: 1Hz

SDS011  Laser PM2.5 Sensor5

PWM Output Description

SDS011  Laser PM2.5 Sensor6

Schematic diagram of output

SDS011  Laser PM2.5 Sensor7

Installation Size

SDS011  Laser PM2.5 Sensor8
SDS011  Laser PM2.5 Sensor9

4. Hose connection: optional. It can be connected with the hose of 6mm inner diameter and 8mm external diameter. The hose cannot be longer than 1m, the shorter the better. The hose must keep the air flowing.

5. Prevent glare: the sensor has shading device inside, so it can work normally under the common light. You should pay attention to prevent the inlet, outlet from direct light. 6. Keep the inlet and outlet unobstructed.

Company Profile

 SHANDONG NOVA TECHNOLOGY Co.,Ltd. founded in 2011, and located in National University Science Park of Shandong University, No. 12918, South 2nd Ring Road, Shizhong District, Jinan. The core team is from Shandong University, National small giant enterprises, high-tech enterprises, software enterprises, Shandong specialized and special new enterprises, Shandong gazelle enterprises. 


 Nova insists on the enterprise concept of "ingenuity, creation, cooperation and efficiency", gives full play to the advantages of technological innovation and product research and development, is committed to the development of environmental protection equipment, software and cloud platform development and big data services, provides optimized solutions for environmental governance, and promotes the socialization of environmental protection, the automation of environmental monitoring, the informatization of environmental supervision, the digitalization of responsibility assessment, and the precision of environmental governance.


 Nova has industry-university-research cooperation with Shandong University, Chinese Research Academy of Environmental Sciences, Beihang University and other universities, and has the ability to rapidly transform scientific and technological achievements. With more than 20 years of laser technology accumulation, the company has independently developed high-precision quad-core laser particle sensor, mobile vehicle atmosphere monitoring system and grid monitoring of atmospheric pollution system, etc., the technology is leading in China, and has applied for 32 international PTC patents and 49 domestic patents. 


The program of mobile vehicle atmosphere monitoring system run successfully in August 2017 and Jinan become the first city of atmospheric monitoring by taxi. At present, it has provided data services for 40+cities such as Beijing, Shanghai, Xi'an, Taiyuan, Qingdao, etc., realizing low-cost, high space-time resolution data monitoring, rapid positioning, and providing a spotless service for the city. 


Honors and Qualifications

Gazelle Enterprise
Specialization and innovation
High Enterprise Certificate
Occupational Health
Intellectual Property Management System
Environmental Management System
16949 Certificate

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