Laser Particle Sensor
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Laser Particle Sensor
Laser Particle Sensor
Laser Particle Sensor
Laser Particle Sensor

Laser Particle Sensor

MMD201A

Real-time response
Accurate data
Ultra-quiet
$8.50
Quantity :
5008
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1
+

Detail Information

Product Introduction

 

The MMD 201A laser dust sensor is a digital particle sensor that can be used to obtain the number and mass of suspended particles in the air per unit volume, that is, the particle concentration. Data output is in digital format. This sensor can be embedded in various instruments or environmental improvement equipment to obtain the instant and accurate concentration data.

 

This sensor uses the principle of laser scattering, that is, the laser is irradiated on the suspended particles in the air to produce scattering, and the scattered light is collected at a specific angle to obtain a curve of the scattered light intensity signal. Then the microprocessor uses an algorithm based on the Mie (MIE) theory to obtain the equivalent particle size of the particles and the number of particles of different sizes per unit volume.

 

Main Application

 

● Air quality monitoring equipment, portable meters, air purifiers

● Fresh air ventilation system, air conditioner, smart home equipment

● Hospitals, hotels, schools and other public places

 

 

Sensor Characteristics

 

● Minimum resolution particle size 0.3 micron

● Zero false alarm

● Real-time response

● High accurate

● Long life time

● Ultra-quiet

 

Parameter

Items Parameters U nit 
Measuring range0.3~10μm
Technical efficiency50%@0.3 μm 98%@>= 0.5 μm 
Standard volume0.1L

PM1.0&PM2.5&PM10

Maximum consistency error

0 ~ 100μg/m3, ±10μg/m3

101 ~ 1,000μg/m3, ±10% of reading

 
Response time≤10S
DC supply voltage5.0±0.1V
Ripple<50mV
Maximum working current120mA
stand-by current≤200μA
Data interface levelL <0.8@3.3 H >2.7@3.3V
Working temperature-10~+50
Storage temperature-30~60
Working humidity0~99%RH (no condensation) 
Average run time without failures> 40000 (continuous operation)hr
Dimension50×35×21mm

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