Feature
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
Particle mass concentration effective range (PM2.5 standard value):0-500:Microgram/cubic meter
Particle mass concentration resolution:1:Microgram/cubic meter
Particle mass concentration consistency:±10%@100-500 μg/m3
(PM2.5 standard value):±10 μg/m3 @0-100 μg/cubic
Weighing volume:0.1:L
Single response time
Comprehensive response time
DC supply voltage:Typ.5.0, Min.4.5, Max.5.5:V
Working current
Stand-by current
Data interface level:L
2.7@3.3:V
Working temperature:-10~+60:°C
Operating humidity range:0-99%
Storage temperature range:-40~+80:°C
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
Additional information
| Weight | 0.045 kg |
|---|
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