This sensor uses the principle of laser light scattering. That is, the laser illuminates the suspended particles in the air to generate scattering, and at the same time, the scattered light is collected at a certain angle to obtain a curve of the scattered light intensity with time. Furthermore, the microprocessor uses an algorithm based on the MIE theory to obtain the equivalent particle size of the particles and the number of particles of different particle sizes per unit volume.
Parameter
Index
Unit
Particle measurement range
0.3~1.0, 1.0~2.5, 2.5~10
Micron
Particle count efficiency
50%@0.3 micron 98%@>=0.5 micron
Weighing volume
0.1
L
Formaldehyde range
0-1
MG/m³
Formaldehyde resolution
0.001
MG/m³
Maximum error of formaldehyde
FS
Response time
<=10
S
DC supply voltage
5
V
Working current
<=100
mA
Stand-by current
<=200
uA
Data interface level
L<0.8@3.3, H>2.7@3.3
V
Working temperature
-10~+50
°C
Operating humidity range
0-99%
Mean time between failures
>=3
Y
Biggest size
50 x 38 x 21
mm
Pin Description:
VCC
Power +5V
GND
Power supply-
SET
Set the pin/TTL level @3.3V high or floating to normal operation, low level to sleep state
RXD
Serial receiver pin / TTL Level @3.3V
TXD
Serial transmit pin / TTL level @3.3V
RESET
Module reset signal / TTL level @3.3V, low reset
NC
Package includes:
1 x Laser PM2.5 Sensor 1 x Cable
Also Purchased
Recently viewed
Free delivery
Providing Free Delivery Across India
Satisfied or refunded
Don't Like It ? No Worries , We will take it Back.
Top-notch support
Any Queries, Contact us Anytime at Support@shop2india.com
