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air pollution quality tester Formaldehyde Monitor with LCD screen

  • 2-999 Units
  • >=1000 Units
- + Units available
0piecesselected, US $in total
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Shipping fee:
Depends on the order quantity.
Lead Time:
10 day(s) after payment received
Customized packaging (Min. Order: 500 Units)
Customized logo (Min. Order: 500 Units)


Graphic customization (Min. Order: 500 Units) Less
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Quick Details
Place of Origin:
Guangdong, China
Brand Name:
Model Number:
DM 106A
Product size:
ABS with TFT Screen
Detecting Gas:
AQI range:
Power supply:
Rechargeable Li-battery 1000mAh
HCHO range:
TVOC range:
Laser Scattering

Packaging & Delivery

Selling Units:
Single item
Single package size: 
24X13X8 cm
Single gross weight:
1.000 kg
Package Type:
box included :Main Unit+ manual+charging cable Packing : 40 pcs /ctn Carton size: 32*35*15Cm N.W:14.1KG G.W:15KG
Picture Example:
Lead Time :
Quantity(Units) 1 - 50 51 - 500 501 - 1000 >1000
Est. Time(days) 10 15 20 To be negotiated

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 . 




Model DM106A
weight 350g
Power supply rechargeable  Li-battery 
 PM2.5 Sensor technolology Laser Scattering  
 Sampling Time  1 second
 HCHO/TVOC technolology       Semiconductor sensor 
 Detection range:                           AQI(0-500)
PM2.5 ( 0-999 ug/m³ )






Gas analyzer Formaldehyde(HCHO) Monitor Indoor Air Quality Logger Detector Accurate Testing Data with TVOC/HCHO/TEMP/HUM/AQI


Bullet Point

Handheld design,very smart,black color,Variety of interface style switching.

Accurate detection for Formaldehyde HCHO ,TVOC including benzene,AQI,TEMP,HUM

It can be used in office, indoor and fitment pollution detection,24 hours real time monitoring.

Detection range: HCHO(0.001-1.999Mg/M³),TVOC(0.001-9.999Mg/M³)

Built in Li-battery 1000mAh,including Usb charging cable,user manual.1 year warranty.


Product description

The formaldehyde detector meter is adopted  Electrochemistry Sensor Technology ,

Strong anti-interference, with usual calibration,detect more accurate.

it analyze air quality and detect HCHO,TVOC ,AQI,TEMP ,HUM  display.                                                        

The formaldehyde detector meter is suitable for new furniture & decoration, living room, for the new car etc.

24 hours real time monitoring

TFT Big electronic screen, clear display, convenient for your reading.    




What are included :

Main Unit   1pc

User manual  1pc

USB Charging cable 1 pc




Q: Why do I need to calibrate?
A: Our products work in the form of outdoor formaldehyde-free air sampling as a benchmark, and then get indoor air formaldehyde content as a comparison, so the new machine products for a long time not used, the detection of environmental temperature changes need to change First calibrated and then tested, the value of this calibration for the subsequent detection of the accuracy of a great relevance. Calibration environment must avoid spices, perfumes, paint, cigarettes, air fresheners, alcohol and other chemical pollutants, so as not to damage the sensor.

Q: the test value has been 0, spray perfume will rise?
A: Please re-calibrate outdoors. Detection of spices, perfume, paint, cigarettes, air fresheners, alcohol and other chemical pollutants, so as not to damage the sensor.

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)