Air Particulate Meter Monitor

Short Description:

Built in professional duct sensor with optical IR LED sensing method. Real time monitor indoor PM2.5 concentration.
Built in high accuracy temperature & RH sensor, monitor indoor air temperature & RH.
Using our unique technology of compensating method, and up to nine calibration points, to guarantee G03-PM2.5 measurements accuracy in different environments.
LCD displays the real time measurement and moving average value of PM2, as well as real time temperature and RH measurements.
Special design six backlit LCD for six levels of PM2.5, in straight and clear read.
long-term security power supply: 5VDC with a power adaptor
Option: RS485 interface with Modbus protocol
Users can know very well the indoor PM2.5 concentration, and can easily select a air purifier/air cleaner. Not only see a visible effective of indoor air clean but also have a reasonable use of an air cleaning device.

Brief Introduction

Product Tags


Particulate matter (PM) is a particle pollution, which is produced in a great number of ways that can be classified into either mechanical or chemical processes. Traditionally, the environmental sciences have divided particles into two main groups PM10 and PM2.5.

PM10 is particles between 2.5 and 10 microns (micrometers) in diameter (a human hair is about 60 micron in diameter). PM2.5 is particles smaller than 2.5 microns. PM2.5 and PM10 have different material compositions and can come from different places. The smaller the particle the longer it can remain suspended in the air before settling. PM2.5 can stay in the air from hours to weeks and travel very long distances because it is smaller and lighter.

PM2.5 can get down into the deepest (alveolar) portions of the lungs when gas exchange occurs between the air and your blood stream. These are the most dangerous particles because the alveolar portion of the lungs has no efficient means of removing them and if the particles are water soluble, they can pass into the blood stream within minutes. If they are not water soluble, they remain in the alveolar portion of the lungs for a long time. When the small particles go deeply into the lungs and become trapped this can result in lung disease, emphysema and/or lung cancer in some cases.

The main effects associated with exposure to particulate matter may include: premature mortality, aggravation of respiratory and cardiovascular disease (indicated by increased hospital admissions and emergency room visits, school absences, loss of work days, and restricted activity days) aggravated asthma, acute respiratory symptoms, chronic bronchitis, decreased lung function and increased myocardial infarction.

There are many varieties of particulate pollutants in our homes and offices. Ones from outside include industrial sources, construction sites, combustion sources, pollen, and numerous others. Particles are also generated by all kinds of normal indoor activity ranging from cooking, walking across the carpet, your pets, sofa or beds, air conditioners etc. Any movement or vibration can create airborne particles!


General Data
Power supply G03-PM2.5-300H: 5VDC with a power adaptor

G03-PM2.5-340H: 24VAC/VDC

Work consumption 1.2W
Warm-up time 60s (first using or using again after a long-time power off)
Monitor parameters PM2.5, air temperature, air relative humidity
LCD display LCD six backlit, displays six levels of PM2.5 concentrations and one hour moving average value.

Green:   Top Quality- Grade I

Yellow:   Good Quality-Grade II

Orange:  mild level pollution -Grade III

Red:     medium level pollution Grade IV

Purple:   seriously level pollution Grade V

Maroon:  severe pollution - Grade VI

Installation Desktop-G03-PM2.5-300H

Wall mounting-G03-PM2.5-340H

Storage condition 0℃~60℃/ 5~95%RH
Dimensions 85mm×130mm×36.5mm
Housing materials PC+ABS materials
Net weight 198g
IP class IP30
Temperature and Humidity Parameters
Temperature humidity sensor Built-in high precision digital integrated temperature humidity sensor
Temperature measuring range -20℃~50℃
Relative humidity measuring range 0~100%RH
Display resolution Temperature:0.01℃            Humidity:0.01%RH
Accuracy Temperature:<±0.5℃@30℃     Humidity:<±3.0%RH (20%~80%RH)
Stability Temperature:<0.04℃ per year   Humidity:<0.5%RH per year
PM2.5 Parameters
Built-in sensor Laser dust sensor
Sensor Type Optical sensing with an IR LED and a photo-sensor
Measuring range 0~600μg∕m3
Display resolution 0.1μg∕m3
Measuring accuracy(1h average) ±10µg+10% of reading  @ 20℃~35℃,20%~80%RH
Working life >5 years (avoid to close lampblack, dust, great light)
Stability <10% measurement decline in five years
RS485 interface MODBUS protocol38400bps

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