| After-sales Service: | 1 Year |
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| Warranty: | 1 Year |
| Brand: | Dienmern |
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Shipping Cost:
Estimated freight per unit. |
about shipping cost and estimated delivery time. |
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| Initial Payment Full Payment |
| Currency: | US$ |
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| Return&refunds: | You can apply for a refund up to 30 days after receipt of the products. |
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Suppliers with verified business licenses
Audited Supplier | Feature | -Detecting:PM2.5 / Temperature / Humidity -2000mAh capacity Rechargeable Lithium Battery, 5V DC Micro USB Charging Cable -Exceeding Alarming, Support Alarm On/Off -Adjustable Brightness and Alarm Threshold -PM2.5 Alarm Value is 100ug/m³, PM2.5 Alarm Threshold is 80-200ug/m |
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.
Langder 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 items can this tester test?
A: It is a multifunctional tester that can test PM2.5,Temperature and Humidity.
2. Q: What is the test range of PM2.5?
A: 0-999 ug/M3
3. Q: What is the range for PM2.5 to this product?
A: There is an indicator on the product, will show different colors according to the PM2.5 leve
0-75: Green, good condition
76-150: Yellow, unhealthy
151-300: Purple, serious,
above300: Red, dangerous
4. Q:How about OEM or custom?
A:Sure, As professional and stable manufacture for manufacture 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 standard value , such as shoot logo display , such as customized language display Etc.
5. Q:What's certificate include?
A:a. CE and Rohs b. MSDS and UN38.3 c. ISO9001
6. Q:What products your factory produce ?
A:Multi-function Air quality monitor ( CO2 PM2.5,PM1.0,PM10,HCHO,TVOC ), CO2 Meter, Ozone Detector, NH3 Detector, Weather Station , Decibel Meter, Alcohol Tester, Multimeter, Radon Detector, Geiger Detector ( Nuclear Radiation Detector ), Electromagnetic Detector
7. Q:What are the payment methods ?
A:a. alibaba transaction guarantee (2% of the additional cost)
b. TT (Bank wire transfer ,an additional $25 per payment).
8. Q:What is the delivery time?
A:After confirm the order, it will take about 2-30 days to delivery goods depend on the order quantity .
Some models we have stocks , so 1-3 days will delivery goods;
Some models not in stocks, if quantity is small , 5-10 days;
Customized order, it will take 20-25 days normally;
For bulk orders up to 30000pcs , it will take 30 days.
Suppliers with verified business licenses
Audited Supplier 
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