Features:
  • Accurate and Reliable: laser detection, stable, good consistency.
  • Quick response: data update frequency 1Hz.
  • Easy integration: serial output, built-in fan.
  • High resolution: resolution of 0.3ug/m3.
  • Convenient use, easy installation, and small volume.

Specifications:
Material: Plastic
Condition: 100% brand new and high quality
Weight: 60g

Technical Parameters:
NO. Item Parameter
1 Measuring output PM2.5, PM10
2 Range PM2.5: 0.0-999.9μg/m3


PM10: 0.0-1999.9μg/m3
3 Rated voltage 5V
4 Rated current 70mA±10mA
5 Sleep current <4mA
6 Temperature range Storage environment: -20℃ ~ +60℃


Operation environment: -10℃ ~ +50℃
7 Humidity range Storage environment: Max.90%


Operation environment: Max.70%
8 Working atmosphere pressure 86KPa ~ 110KPa
9 Response time 1s
10 Serial data output frequency 1Hz
11 Min. particle diameter resolution Less than 0.3um
12 Counting efficiency 70%@0.3μm


98%@0.5μm
13 Relative error ±15% and ±10μg/m3 maximum(25℃, 50%RH)
14 Power supply voltage 4.7~5.3V
15 Power supply power ≥1W（current ＞ 200mA）
16 Power supply voltage ripple ＜20mV
17 Product size Approx. 70 x 70 x 22mm / 2.75 x 2.75 x 0.86inch


Interface specification:

Pin Name Note
1 NC Empty
2 1um PM2.5: 0-999 PWM Output
3 5V 5V power input
4 2.5μm PM10: 0-999 PWM Output
5 GND GND
6 R Serial port receiver RX, TTL level @ 3.3V
7 T Serial port transmission TX, TTL level @ 3.3V

Note: The pitch of Interface is 2.54mm

Communication protocol:
Serial communication protocol: 9600 8N1. (Rate of 9600, data bits 8, parity none, stop bits 1)
Serial report communication cycle: 1+0.5 seconds
Data frame (10 bytes): message header + order+ data(6 bytes) + checksum + message trailer
The number of bytes Name Content
0 message header AA
1 order C0
2 data 1 PM2.5 low byte
3 data 2 PM2.5 high byte
4 data 3 PM10 low byte
5 data 4 PM10 high byte
6 data 5 ID byte 1 
7 data 6 ID byte 2
8 checksum checksum
9 message trailer AB


Checksum: data 1 + data 2 + ...+ data 6
PM2.5 data content: PM2.5 (um/m3) = ((PM2.5 high byte*256 ) + PM2.5 low byte)/10
PM10 data content: PM10 (um/m3) = ((PM10 high byte*256 ) + PM10 low byte)/10
The low byte and high byte of SN are the last four of the bar code on the sensor.

PWM output:
Output range: PM2.5: 0-999μg/m3, PM10: 0-999μg/m3
Cycle: 1004ms +1%
High level output in start cycle: 2ms
Middle cycle: 1000ms +1%
Low level output in end cycle: 2ms

Package List
1 x Laser Dust Sensor
1 x USB To TTL Module
1 x Cable

Note:
Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.
  



 

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