portable air quality monitor PM2.5/HCHO/TVOC/PM1.0/PM10 AQI air detector meter 2020 best seller USA

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Overview
Quick Details
Place of Origin:
Guangdong, China
Brand Name:
Dienmern
Model Number:
DM502
Type:
502
Product Name:
Air quality Monitor
Material:
ABS + TFT LCD Screen
Size:
100*95*47MM
Sensor type:
Laser Scattering
Measure Components:
PM2.5 PM1.0 PM10 TVOC HCHO AQI
Power Supply:
2200mAh lithium battery rechargeable
Usage:
Indoor /in car /new house /bedroom
HCHO:
0.001-1.999Mg/M3
TVOC:
0.001-9.999Mg/M3
Color:
White

Packaging & Delivery

Selling Units:
Single item
Single package size: 
20X20X12 cm
Single gross weight:
1.0 kg
Package Type:
neutal gift box
Lead Time :
Quantity(Pieces) 1 - 5 >5
Est. Time(days) 7 To be negotiated

Dienmern 2019 best seller PM2.5 air quality monitor HCHO/TVOC/PM1.0/PM10 AQI handheld air detector meter USA/Poland/Canada/India/Korea/Thailand

 

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.

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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.
HTHTB2
package (4)
 
 

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Black/white  502 air quality monitor -Dienmern brand

  • MULTIFUNCTIONAL & SCIENTIFIC – This indoor air quality monitor accurately assesses temperature (in C/F), humidity level, and multiple measures of air quality including concentrations of formaldehyde, total natural & synthetic volatile organic compounds causing most odors (TVOC), and fine particulate dust matter (PM2.5/PM1.0/PM10) which travel deeply into the respiratory tract, reaching the lung alveoli.
  • PORTABLE TESTING – Spot check indoor air quality or leave device on for continuous monitoring. Built-in stand allows air monitor to be placed unattended anywhere. This easy-to-carry device can help monitor air quality at home, in the car, and in hotel rooms. The lithium battery provides portable power when DC 5V micro USB charging is not available. Information is displayed on a clear 2.8” 320 x 240 pixel color LCD display.
  • ADVANCED FAN & SENSORS – This air quality monitor has a built-in fan to quickly draw in ambient air to allow REAL-TIME measurements. It incorporates a laser sensor to measure levels of dust particles and has a second electrochemical semiconductor sensor to measure formaldehyde and natural/synthetic organic compound levels. Air monitor also auto calibrates in fresh air.
  • HEALTHY HOME? – Is your family suffering from sick building syndrome? This air quality tester detects organic compounds like formaldehyde which has suspected links to nasal cancer and lung cancer emitted from many household materials. By measuring particulate pollution, an air pollution monitor can also help you know when asthma may worsen and when to change your home’s air filter.
  • ORIGINAL DESIGN & USA BASED SUPPORT – We have Midwest-based technical staff including a chemist to answer any questions you have. Also included will be a 20+ page eBook on Gas and Air Quality Hazards. We have worked with the supplier that holds this air quality detector’s design rights so you can be confident this item is tried and tested.

 

Specification:

Test range : PM2.5+ HCHO+TVOC+ AQI+PM1.0+PM10+ Temperature+Humidity

-Laser sensor
-TFT LCD screen display
-320*240 pixels
-It can be used in office, indoor and fitment pollution detection
-24 hours real time monitoring
-Power supply:Built in Li-battery 2200mAh
-Material : ABS with TFT Screen
-Color:white / black
-Size : 149*69*22 mm
-Detection data range:
PM2.5(0-1000)
HCHO(0.001-1.999Mg/M3)
TVOC(0.001-9.999Mg/M3)

 

 

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Have you gone nose blind to household odors or dust?
Check multiple measures of your home's air quality. FAN onboard allows REAL-TIME accurate monitoring of temperature (in C/F), humidity, formaldehyde (HCHO), total volatile organic compounds (TVOC), and micron-sized fine particulate dust (PM2.5/PM1.0/PM10). Formaldehyde is an environmental carcinogen yet odorless at lower concentrations. Detect low levels of airborne TVOCs not perceivable to the human nose. This device was featured with cabin filter testing during 2018 CA fires 

Problems with allergies?

This air quality monitor with built-in stand can continuously monitor your air quality and when you need to change your home’s air filter. Watch the levels of indoor total volatile organic compounds and formaldehyde drop when the windows are opened. Learn where air quality is poorer and where your allergies can worsen. Allergies that are difficult to control with unexplained coughing, runny nose, and shortness of breath may be signs of sick building syndrome.

 

 

Note:

1.Items Must Be Placed on The Indoor Static More Than An Hour Then It

Will Show The Actual Data. If Randomly Moved, The Data Will Be Inaccurate.

2.If You Can Ensure A Clean Environment, The Goods Can Be The Calibration Data, And Them Measure. If Items Are In Low Battery, The Data May Be Inaccurate

 

Factor Production Line: 

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There are also other models for optional : 

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 Certification

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QA

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.

 

 

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