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.
Specific
ations:
Material: Plastic
Condition: 100percent brand new and high quality
Weight: 60g
Technical
Param
ete
rs:
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 celsius +60 celsius
Operation environment: 10
celsius
+50
celsius
7
Humidity range
Storage environment: Max.90percent
Operation environment: Max.70percent
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
70percent @0.3μm
98percent @0.5
μm
13
Relative error
+ 15percent and + 10μg m3 maximum(25
celsius
, 50percent RH)
14
Power supply voltage
4.7 5.3V
15
Power supply power
more than 1W(current more than 200mA)
16
Power supply voltage ripple
less than 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 +1percent
High level output in start cycle: 2ms
Middle cycle: 1000ms +1percent
Low level output in end cycle: 2ms
Package List
1 x Laser Dust Sensor
1 x USB To TTL Module
1 x Cable
Note:
.
