Basic Info.
Product Description
Oxygen sensor is aimed for oxygen concentration and flow rate monitor.It adopts ultrasonic technology with high accuracy, strong anti-interference ability, rapid response, and long service life features.
Oxygen sensor is mainly used to detect the concentration of oxygen produced by molecular sieve oxygen concentrator. Our oxygen concentration detection device has features of simple structure, swift response and high measuring accuracy. The high/low oxygen concentration indicating dvice of our lambda sensor can be designed as an indicating lamp or a real-time digital display according to customer's preference. So far, our company has successfully produced customized oxygen sensors for many famous oxygen concentrator manufacturers. We are looking forward to your negotiations and cooperation. 
We are Longfian
Longfian Scitech Co., Ltd, a leading manufacturer specialized in oxygen solutions for 25 years, production and marketing of various oxygen concentrators which include medical oxygen therapy, indoor oxygen supply, plateau simulation, industrial, veterinary and other fields. Longfian is headquartered in Baoding, China. We have 520 employees, covering an area of 40,000 square meters, with annual production capacity of 1.5 million units.
2 Million Praises from Worldwide
All of our products comply with ISO13485 quality managing system and some models obtained CE certificates. in the meantime, our technology and team carried out technological innovations, awarded 28 invention and design patents, and completed registration of 36 countries for import permits. till now, Longfian, has got the market share over 70% and exported to more than 160 countries around the world, benefiting 2 million end-users.
WHO & the United Nations Awards and Recognition
Longfian is the designated qualified supplier of United Nations organizations. Presently, we have undertaken many rescue material projects of oxygen concentrator from all over the world. Last year, we supplied nearly 1,200,000 units oxygen concentrators to different countries and they have expressed their recognition and gratitude to Longfian.
Longfian Footprint in the World
Since the year 1998, we started to go deep and explore the world market. 25 years export experience, 95 countries visits(like USA, Mexico, Colombia, Brazil, United Kingdom,Germany, Romania,Spain, Russia, Tajikistan, India,Thailand, Vietnam, South Africa, Nigeria etc.), more than 480 international exhibitions (including the FIME, MEDICA, ARAB HEALTH, HOSPITALAR, CMEF etc. ) which all laid a solid foundation for the No. 1 export volume of China-Made Oxygen Concentrator for recent 6 consecutive years and make LONGFIAN brand the benchmark of the mark.
Why choose us?
QA and QC covered each step of production and process in the whole factory, which make strict control of each product quality to ensure the finished products 100% qualified. The rigorous and complete QA system has enabled LONGFIAN to obtain international certificates such as CE, FDA, etc.
2. AUTHORITATIVE RECOGNITION
The unanimous choice of world-renowned NGO and governments, which witness Longfian quality and the leading position in the global market.
3. PRODUCTION CAPACITY
Covering an area of 40,000 square meters,annual production 1,500,000 units,to ensure each order delivered on time.
4. TECHNOCOLOGY
With 25 years of experience accumulation and market exploration, we have successfully obtained 28 patents for oxygen concentrators. The technical team will always maintain innovation and independent research and development, and strive to be the vane leading the oxygen concentrator industries.
5. CERTIFICATES
We have obtained 36 international certifications and market access permits including EU CE, EU FSC, U.S. FDA, Brazil ANVISA, Colombia INVIMA, Mexico COFEPRIS, Saudi Arab SFDA, Russian GOST, Uzbekistan MOH, Ethiopia FMHACA, Nigeria PC ...With all the certifications, we can freely sell to every corner of the world.