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Air Quality Monitor Meter Gas Analyzer Sensor Detector PM1.0|PM2.5|PM10|Formaldehyde(HCHO)|TVOC Gas Pollution Measurement

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Payment Terms: L/C,D/A,D/P,T/T,Western Union,MoneyGram
Supply Ability: 2000 Piece/Pieces per Month
Warranty: 12 Months
Place of Origin: Guangdong China
Color: White
Power supply: Rechargeable Li-battery 1500mAh
Material: ABS
Model Number: DM502
Weight: 350G
Product Size: 155*87*35MM
PM2.5 Sensor technolology: Laser Scattering
Brand Name: Dienmern
Type: Handheld air quality monitor
Product name: Handheld Air quality monitor
Test Components: PM2.5+PM1.0+PM10+Formaldehyde(HCHO)+TVOC+Temperature+Humidity+AQI
Display: TFT LCD Screen
Packaging Detail: gift box
Package Preview: https://sc01.alicdn.com/kf/H0a5d8d4afce04f7caf89baa0342464b0H.jpg_640x640.jpg
Shenzhen Qianhuilai Technology Co., Ltd.
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Product Description
Air Quality Monitor Meter Gas Analyzer Sensor Detector PM1.0|PM2.5|PM10|Formaldehyde(HCHO)|TVOC Gas Pollution Measurement

Why use this product:
In many cities, they have pollution so need to verify air quality.An ideal multi-function testing tool to monitor the air quality, a safeguard for family health If you worried about the air quality around you or your children. If exceed standard, prompt alarm ! Also we need to detect inner room air quality especially new decoration house Don't forget, HCHO/TVOC formaldehyde is the healthy-killer, especially for kids and small baby. When we detect the unhealthy air quality(especially completely closed room, like cool air conditioing room or heat room. The air must be very unhealthy), we must be open the door or windows, or use air purifier to clean the air to make sure we have a good healthy air environment.
Product specifications
Product Name
Multi Gas Detector
PM2.5/PM1./PM10 technolology
Laser Scattering
TVOC technolology
Semiconductor sensor
ARM ,High-speed complex calculations

Detection range
PM2.5 ( 0-999 ug/M³ )
Power supply
Rechargeable Li-battery 1500mah
TFT LCD screen display

  • Product function

Laser sensor for PM2.5 to detect dust Smog.
Semiconductor sensor for TVOC/HCHO.
Temperature and Humidity sensor.
AQI for Integrated air quality index.
Support time and date, self-calibration function.
-2.8" color liquid crystal display (LCD), 320x240 pixels
-User adjustable alarm threshold for formaldehyde (HCHO) to alert user of elevated
-Test variables: PM2.5/1.0/10, formaldehyde, TVOC, temperature, humidity
-Large 1500mAh capacity Lithium battery
-On-board fan to draw in ambient air for more accurate real-time results
-5V Micro USB charging
-Low battery warning

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 digital LCD display.

Use environment
Air pressure:86Kpa-106Kpa
Relative humidity:20%-85%
Test temp:-10℃-45℃
Storage temp:-20℃-50℃

Product List
Air Quality monitor x 1
Micro USB charging cable x 1
Product Manual x 1

Avoid covering the air intake areas during use to avoid inaccurate measurements.
Avoid use of solvents to clean the product as residual fumes will skew air quality readings.
Avoid water or other liquids near the product to avoid electrical damage.
Do not allow unauthorized modification or repair of this product.

Company Profile
We are True Factory Locate in Shenzhen City China . We provide OEM ,ODM Service.
Production line:
1 Q: What the test index are include for air quality monitor?
A : PM2.5: is main for smog(PM1.0 and PM10 are the same);
HCHO: is for formaldehyde;
TVOC: is main for benzene,etc Volatile organic compounds;
AQI: is for Integrated air quality index.

2. Q: What is the safe range for formaldehyde (HCHO) and TVOC?
A : HCHO≤ 0.10mg / m3
TVOC≤ 0.60mg / m3
According to ("indoor air quality standards" GB / T 18883-2002 and
GB 50325-2001 Class II civil construction).

3 Q: What is the standard range for PM2.5?
A: Good 0~12
Medium 12~35
safe value 35~70
Unhealthy more than 70

4 Q: Why do I need to calibrate(Just HCHO and TVOC need to calibration, PM2.5 and AQI no need)?
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 calibrated first 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.

5.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 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.

6 Q: Why is the PM2.5 test value always changing?
A : PM2.5 data are changing all the 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.

7 Q: Why does the products make a sound when working?
A : As PM2.5 detection need to collect a lot of mobile air, the inner fan needs strong operation to ensure accurate detection.

8 Q: How much range of detection of formaldehyde concentration detector,how many square meters?
A : Test area≤ 50m3, room should be set 1~3 testing points; 50m3 ≤ Test area≤ 100m3, room should be set 3~5 testing points; ≥100m3, the points should more than 5 ponits. Testing points is on a diagonal or plum blossom evenly distributed, would more better. The height of the sampling point: in principle,consistent with the human breathing.
Relative height of 0.5m ~ 1.5m between.

9 Q: which kinds of air index exceeded, would lead to Alarm sound?
A: Just HCHO data more than 0.10mg / m3, would lead to Beep sound.