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), CO2 ,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.
Display method: 4.3” LCD screen display, 320 x 240 pixels
Atmospheric pressure: 86Kpa - 106Kpa
Detection method for PM: laser scattering
Sampling time: 1.5 seconds
Product Size: 131*78*67.5 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 3000 mAh capacity; 5V DC power chargingvia micro USB port
Product weight: 340g
Laser sensor for PM2.5 to detect dust Smog.
Semiconductor sensor for TVOC/HCHO.
4.3" 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 1000mAh capacity lithium battery
On-board fan to draw in ambient air for more accurate real-time results
5V Micro USB charging
Low battery warning
Why Measure TVOC and Formaldehyde?
TVOCs are carbon-containing compounds produced by synthetic processes,
materials, and organisms. Formaldehyde has suspected links to nasal cancer and
lung cancer and emitted from many household materials. Most known carcinogens
are synthetic organic compounds as they can interact with DNA to cause mutations/
cancer. A combined measure can give a picture of relative indoor pollution levels
and synthetic gas accumulation.
Standard Accessories :
-USB Charging cable
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 .
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.
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
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.