Air quality monitoring system Smart home indoor air detector AQI PM2.5 PM1.0 PM10 HCHO TVOC

  • 2-99 Units
  • 100-499 Units
  • 500-1999 Units
  • >=2000 Units
Measurement Range:
PM2.5 ( 0-999 ug/M3) HCHO(0.001-1.999Mg/M3) TVOC(0.001-9.999Mg/M3)
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Shipping fee:
Depends on the order quantity.
Lead Time:
15 day(s) after payment received
Customized logo (Min. Order: 500 Units)
Customized packaging (Min. Order: 500 Units)


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Quick Details
Place of Origin:
Guangdong, China
Brand Name:
Model Number:
DM108 wood color
Air quality monitor pm2.5
ABS and TFT LCD screen
Screen display:
PM2.5+ HCHO+TVOC+ AQI+PM1.0+PM10+ Temp+ Hum
Power supply:
rechargeable Li-battery
12 Months

Packaging & Delivery

Selling Units:
Single item
Single package size: 
29X14X12 cm
Single gross weight:
1.5 kg
Package Type:
gift box
Picture Example:
Lead Time :
Quantity(Units) 1 - 100 101 - 1000 1001 - 10000 >10000
Est. Time(days) 15 25 35 To be negotiated
Video Description

Air quality monitoring system Smart home indoor air detector AQI  PM2.5 PM1.0 PM10 HCHO TVOC


Langder Technology Co., Ltd. focuses on indoor and outdoor environment detection and treatment, home intelligent product development and production. We has strong independent research and development team, efficient production capacity, manufacturers direct supply, one hand source, product one year warranty service,We accept OEM  , we can your own LOGO, mold, and unique design on the product . 



Product Specifications

Display method: 7” LCD screen display

Atmospheric pressure86Kpa - 106Kpa

Detection method for PM: laser scattering

Sampling time1.5 seconds

Product Size: 240125 x 110 mm

Detection temperature: -10°C to 50°C; 14°F to 122°F

Relative humidity: 20% - 85%

Storage temperature-10°C to 60°C; 14°F to 140°F

Concentration unit for HCHO and TVOC: mg/m³

Power source: Lithium battery with 1000 mAh capacity; 5V DC power charging via micro USB port

Product weight: 710g  



Product Description

This product is a multifunctional air quality detector that detects Formaldehyde (HCHO), Total Volatile Organic Compounds (TVOC), Particulate Matter <2.5 micron-sized particles (PM2.5/1.0/10), Temperature, and Humidity with clock and record function. As a scientific air quality detection device, it combines multiple air sensors with a built-in fan to allow real-time monitoring of formaldehyde (HCHO), total volatile organic compounds (TVOC), PM2.5/1.0/10, temperature, and humidity on its Large  7 inch digital LCD display.


Features : 


Material ABS
Color wood
Function 1 PM2.5,PM1.0,PM10
Function 2Formaldehyde(HCHO)
Function 3TVOC
Function 4AQI
Function 5Temperature
Function 6Humidity
Function 7Time Calendar 
Function 8Alarm Clock
Display 7'' TFT LCD screen
Detection data range: 

PM2.5 ( 0-999 ug/M³ )






DM-108A (2)



Standard Accessories :
-Main device
-USB Charging cable
-User Manual




Name Card




 Q: How much range of detection of formaldehyde concentration detector,how many square meters?

1. The principle is less than 50m3 ,the room should be set 1 to 3 points;50 ~ 100m3 Set 3 to 5 points;More than100m3 at least 5 points. On a diagonal or plum blossom evenly distributed.
2.Sampling points should avoid the ventilation, from the wall distance greater than 0.5m.
3.The height of the sampling point: in principle, consistent with the human breathing.Relative height of 0.5m ~ 1.5m between.


Q: Why PM2.5 readings with the published value on the site is not the same?
A: Because the location and conditions of the test is difficult to reconcile with the weather station, the weather station in the city there are several sampling points, each sampling point measured data are also very different, the sampling point of the location is strictly required; height 3 to 30 meters, air circulation, can not be close to the chimney, furnace and other obvious sources of pollution. And there are no high-rise buildings, trees or other obstructions that can impede the flow of ambient air around the instrument.


Q: Why is the PM2.5 test value changing?
A: PM2.5 data are changing at all times, with the air, wind, humidity and other environmental factors change, in the room smoking, cooking fumes, car exhaust emissions, coal, chimney, furnace Such as pollution sources will change the PM2.5 value of this area, resulting in differences in the detection data.


Q: Why is the product sounding when working?
A: PM2.5 detection need to collect a lot of mobile air, in order to ensure accurate detection of the fan needs strong operation, so a little sound is normal.


Q: What is the standard for formaldehyde (HCHO)?
A: ≤ 0.10mg / m3 ("indoor air quality standards" GB / T18883-2002)


Q: What is the standard for total volatile organic compounds (TVOC)?
A: ≤ 0.6mg / m3 (GB / T 18883-2002 and GB 50325-2001 Class II civil construction)







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