| After-sales Service: | 1 Year |
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| Warranty: | 1 Year |
| Brand: | Dienmern |
| Customized: | Customized |
| Portable: | Desktop / Wall Mounted |
| Certification: | CE, RoHS |
| Samples: |
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| Customization: |
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Suppliers with verified business licenses
Audited Supplier 
| Specification | item: Air quality tester , Air quality meter |
| Material: ABS | |
| Product size: 240 X 120 X 24MM | |
| CO2 Technology: infrared ( NDIR) | |
| PM2.5 Sensor technolology: Laser Scattering | |
| Input voltage: TYPE-C 5C 1000mA | |
| what are included: Main Unit+ manual+charging cable | |
| Detection range: AQI(0-500)
PM2.5 (0-999 ug/M³) CO2 ( 400-5000 ppm) HCHO (0.001-1.999Mg/M³) TVOC(0.001-9.999Mg/M³) |
Shenzhen Langdeli Technology Co.,Ltd is a modernized comprehensive scientific research enterprise which was established in March 2013, located in Shenzhen City, Guangdong Province China.
It is mainly in the business of research and development, production, sales of all kinds of Testing instruments and tools , It has established extensive cooperative relations with partners in Netherlands,Spain, Germany ,France, Britain, Poland, Switzerland,Italy,Ireland, Romania,Chile, Mexico, the United States,Japan,korea etc.
At present, the factory is mainly producing and supplying of infrared carbon dioxide(CO2) monitor, negative oxygen ion detector, Ozone meter ,Dust PM2.5 monitor with TVOC and HCHO,NH3 meter , Noise meter monitor ,Radon gas analyzer,thermometer, etc. which all have passed CE, ROHS, PSE approved, distributed all over the world and has been highly recognized.
Since its establishment , the Company has won the title of China's national high-tech enterprise and is the top quality merchant of Alibaba for years,Production scale has 3000 square meters, and with 100 employees.
We has a strong independent research and development team, all Products are from its own private designs and have the apperance patents. It not only provides system solutions for various industries, but also provide product design and OEM services for customers.
1 Q: What the test index are include for air quality monitor?
A : CO2: is for carbon dioxide,Infrared sensor(NDIR) Temperature and Humidity
Suitable for detecting CO2 concentration in industrial, agricultural and residential environments.
Control the ventilation system according to the monitored target value (CO2 concentration).
2 . Q: What is the standard range for CO2?
A: CO2 Test Range:
400~1000 ppm
1001~2000ppm
2001~5000ppm
Temperature Test Range: 0-50ºC
Humidity Test Range 0-95%RH ;
3. Q: How to charge it?
mini USB port charging line which is included in the standard accessories .
We also offer adapter(Like US adapter, Europe adapter...) if add extra cost.
4. Q: How about OEM or custom?
A: Sure, Asprofessional and stable manufacture for CO2 merter factory, we can support many custom contents as below;
a Printing logo on product .
b Package, support custom pacakge(We can send neutral artwork to client to design package)
c Manual, support custom maual for many language,like English, German, Japanese, Spanish, Dutch, Polish
d. some custom sticker, like Amazon FBA upc label... To meet clients requirement.
e. Customized software is also possible such as change the CO2 standard value , such as shoot logo display , such as customized language display Etc .
5. Q: what's certificate include?
A: 1.CE and Rohs 2. MSDS and UN38.3
Common fields
1. Carbon dioxide monitoring of various industrial and agricultural plants, workshops, greenhouses, clean rooms,
etc.
2. Ventilation control and environmental quality monitoring required for homes, villas, office buildings, meeting rooms,
classrooms and other fields.
3. Ventilation control and environmental quality monitoring in public places such as hotels, exhibition halls, hospitals, shopping
malls, bars, restaurants, airports, train stations, entertainment halls, and theaters.
4.Units that produce and use carbon dioxide gas, etc.
Non-mandatory reference rating:
a) 350 ~ 400ppm-usual outdoor air level.
b) 400 ~ 1,000ppm-typical value in well-ventilated living space.
c) 1,000 to 2,000 ppm-an air level that is inadequate, sleepy, and sufficient to cause complaints
d) 2,000 ~ 5,000ppm-stagnant, old, sultry air level. It is headache and drowsiness, accompanied by
inattention, decreased concentration, rapid heartbeat and slight nausea.
e)> 5,000 ppm-Exposure to it may cause severe hypoxia, resulting in permanent brain damage, coma and even death.
Suppliers with verified business licenses
Audited Supplier 
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