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Langder 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 .
Langder is quality oriented, constantly invests in research and development of better testing products, and makes common progress with the global health industry.
Enterprise value: Customer first, integrity first, innovative development, accurate and realistic
Enterprise spirit: create the best products and services based on talents and technology
Company mission: integrity, efficiency, innovation and transcendence
Corporate vision: count the corporate image and create high-quality products

1. who are we?
We are based in Guangdong, China, start from 2013,sell to Western Europe(30.00%),North America(15.00%),Southern Europe(13.00%),Eastern Europe(9.00%),Northern Europe(8.00%),South America(7.00%),South Asia(5.00%),Eastern Asia(5.00%),Southeast Asia(5.00%),Central America(2.00%),Mid East(1.00%). There are total about 51-100 people in our office.

2. how can we guarantee quality?
Always a pre-production sample before mass production;
Always final Inspection before shipment;

3.what can you buy from us?
CO2 Meter , Air Quality Monitor , Ozone Meter Detector, Weather Station , Decibel Meter

4. why should you buy from us not from other suppliers?
1.Accept customized OEM orders .
2.We provide one-year warranty and lifetime service for customers.
3.Accept third-party inspection service to guarantee quality for you.
4.our products are Private,develop and produced by our factory independently.

5. what services can we provide?
Accepted Delivery Terms: FOB,CFR,CIF,EXW,FAS,CIP,FCA,CPT,DEQ,DDP,DDU,Express Delivery；
Accepted Payment Currency:USD,HKD,CNY;
Accepted Payment Type: T/T,L/C,D/P D/A,MoneyGram,Credit Card,PayPal,Western Union,Cash,Escrow;
Language Spoken:English,Chinese