Guangdong, China
Business Type:
Trading Company
Number of Employees:
Year of Establishment:
Export Year:
OEM/ODM Service
Sample Available

Laser Digital Dust Sensor, Air Quality Sensor, Air Purifier Sensor manufacturer / supplier in China, offering Hw210 Laser Digital Dust Sensor Air Quality Sensor Air Sensor, Ntc Resistance Switch Thermistor Mf72 Series (0.7D-25), Photoresistor Ldr Photo Resistors Light-Dependent with Metal Case (HW-MJ55) and so on.

Gold Member Since 2016
Audited Supplier

Hw210 Laser Digital Dust Sensor Air Quality Sensor Air Sensor

Purchase Qty. / Reference FOB Price
10-999 Pieces US $13
1,000+ Pieces US $10.5
Port: Shenzhen, China
Production Capacity: 100000/Week
Payment Terms: L/C, T/T, Western Union, Paypal, Money Gram
Type: Laser Digital Dust Sensor
Conductivity Type: Non-conductivity Type
Output Signal Type: Digital Type
Production Process: Injection
Material: Metal
IP Rating: IP68

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Basic Info.

Model NO.
Transport Package
Standard Package
Made in China
HS Code
HW210 Laser Digital Dust Sensor

Hw210 Laser Digital Dust Sensor Air Quality Sensor Air Sensor
Digital output dust concentration signal output unit μg/m3;
Built in microprocessor MCU optimized precise algorithm; standard serial port output;
Digital PWM pulse width output and standard serial port (USART);
Built-in software self-calibration function, simple debugging, high efficiency and accuracy, good consistency;
Light particle counting principle, digital output, simple application, universal interface;
high sensitivity can detect particles with a diameter of 1μm or more;
Compact structure, light weight (W48.1xH17XD32.3 mm), embedded installation;
Using active air flow structure, real-time data characteristics;
Dual air inlet structure, suitable for more design, convenient installation;

Product principle overview:
SY210 is a laser optical refractometer that detects the number of dust particles in the air and has an embedded MCU
Digital dust sensor for digital detection of real-time environment dust concentration by outputting directly from the operating system and outputting data
Unit μg/m3. Intersecting the laser light source with the optical axis of an image sensor when dusty airflow
Reflected light is generated through the intersection area. The image sensor detects dust reflected laser light, according to precision
High-speed op amp amplification and internal modulation circuit and MCU count and algorithm, operation system particle number and weight conversion,
Direct output of digital signals of dust concentration, this sensor can sensitively detect particles with a diameter of 1.0μm or more,
Repeatedly optimized and precise data processing through the built-in microprocessor MCU has greatly improved the accuracy.
Directly output PM2.5 concentration signal in the current environment, unit μg/m3

Detection and application areas:
Air purifier, air refresher
Air dust detection, indoor air dust quality detection;
Home appliances, air conditioners, HVAC, new fans,
Ventilation system, smoke alarm or other dust monitoring equipment detection components
As non-metering instrument detection components (Note: This product does not require high reliability, safety, precision
Equipment and measuring instrument components);
Electrical parameters:
1Supply voltageDC5V±5% ( CN1:Pin1=GND, Pin2=+5V )
2Power Consumption50mA ± 10%
3Working temperature and humidity‐10~55°C, 95% RH or less (without condensation)
4Storage temperature-30°C~60°C
5Detection particle diameter1μm or more
6Detection of dust particle concentration range5~990μg/m3 (PWM output mode)
7signal outputPWM output in μg/m3/USART serial output
Output level: LOW=0V, HI=4.0V
8dimensionsW48 .1x H17 x D32.3 (mm)
9weightabout 30g
10Measurement start timeApprox. 1 minute after power on (system internal correction time)

Sy210 dust sensor output definition: n
Connector pin definition
No.NamePin Description
1GNDPower Input (ground)
2+5Vpower input (+5V terminal)
3PWMdust data PWM pulse width signal output 1UG/M3=1mS, period 1S
4NCinternal inspection, not open to users; can be vacated
5NCNC internal inspection, not open to users; can be vacated
6TXDUSART Output. Open

 Note: Connector specifications: A1500WF-06A, spacing 1.5mm\6PIN
Data reading method (communication protocol)
A, PWM communication interface:
The PWM interface outputs a periodic pulse signal with a period of 1S, low-level duration of each period
It is proportional to the PM2.5 concentration value detected by the current module. The low level 1ms = 1ug/m3*K;
Read mode: Waiting for counting at high level, counting at low level (no 1mS plus one) when high
When the level is reached, the counting is stopped. This count value is both the PM value and the high level continues to wait and repeat the measurement.
The waveform is as shown in the figure below: Reference graph (specific actual maximum value, see different product specifications)
B, serial communication interface:
1, Communication serial port configuration: Communication baud 2, data packet format: 5 sets of data
Equipment IdentityCommand codeHigh dataLow dataChecksum
3, data frame format: 8 data bits, no parity bit, 1 stop bit
Starting position SData bits 8 bits D0 ~D7Stop bit P
0D0 D1 D2 D3 D4 D5 D6 D71

Installation Notes 

Please install the sensor inside the device to reduce the influence of interference light and prevent light from entering the sensor.

After installation, ensure that the "air inlet" and "outlet" are unobstructed.

Please do not install in a channel with strong airflow. The sensor comes with a fan.

Vibration may affect the characteristics of the sensor. The mounting structure should avoid vibration when the sensor is working.

The device cannot work in a humid vapor environment. When designing the product, ensure that the inspection area cannot have
Vapor or oily corrosive gas environment.

If the device is mounted close to an electrical noise source, the sensor output may be affected by noise from the noise source
Disturbance. When designing a product, consider the effect of the noise source on the sensor output.
Product outline structure

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