Portable Air Quality Monitor O3 ozone handheld gas analyzer detector dust smoke PM2.5/PM10 measuring sensor TVOC tester
Handheld Multi-Function Air quality Monitor
ARM ,High-speed complex calculations
PM2.5 ( 0-999 ug/M³ )
O3(0.000 - 5.000 ppm)
Rechargeable Li-battery 1200mah
TFT LCD screen display
Laser sensor for PM2.5 to detect dust Smog. Electrochemistry sensor for O3.
Semiconductor sensor for TVOC. Temperature and Humidity sensor. AQI for Integrated air quality index. Support time and date, self-calibration function.
Sound(A brief beep)
Alarm action value
0.1/0.3/0.6ppm (alarm on/off switchable)
DM502-O3 type monitor is an intrinsically safe gas detector developed by our company for environments containing ozone gas. The detector uses natural diffusion. The gas is detected by an electrochemical gas sensor, which has excellent sensitivity and excellent repeatability.
This O3 detector is ideal for health, environmental, industrial and residential monitoring. Useful for detection of ozone residue after disinfection.
American O3 SPEC detector 0-5ppm Low concentration ozone sensor application:
1. Air quality monitoring
3. Air purification control
Our DM502-O3 is easy to use and maintain, and meets the requirements of industrial field safety monitoring for high reliability of the equipment. The shell is made of high-strength engineering plastic. It has high strength and good hand feel.
Test range : PM2.5+ O3+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 1200mAh -Material : ABS with TFT Screen -Color:white -Size : 155*87*35MM -Detection data range: PM2.5(0-1000ug/M3) O3(0.000-5.000ppm) TVOC(0.001-9.999Mg/M3)
Why is Ozone Dangerous?Ozone is a tiny molecule which is composed of three oxygen atoms. It is highly reactive which makes it an unstable and potentially toxic gas. Ground-level ozone is considered to be a major component of smog which plagues larger cities during the summertime and has been tied to a variety of potential health risks.
Health Effects of Ozone
The EPA has reported there is a variety of health effects associated with high levels of ozone. This may include decreased lung function, throat irritation, severe asthma symptoms, cough, chest pain, shortness of breath, irritation of lung tissue, and the higher sensitivity to respiratory infection. They went on to note that there were additional risk factors which can perpetuate the side effects of ozone such as undertaking activities which raise breathing rates (such as exercising indoors), certain pre-existing lung diseases, and greater duration of exposure.
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 custom your own LOGO, display language, and unique design on the box at MOQ 500 units.
Brand logo show as the figure below:
(Note: There is no logo default on device. If you need logo, please contact with customer service. Thank you.)
Our air quality monitor is used for various occasions:
Our factory production workshop:
We are True Factory Locate in Shenzhen City China . We provide OEM ,ODM Service. Our current other models :
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.