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Beijing Shi’An Technology Instrument Co., Ltd possesses the ability to design, manufacture and sell gas detection instruments in local and global markets. 
The gas detection instruments we designed are widely used in petrochemical, municipal environmental protection, coal mine, fire fighting, research labs, beverage, residential places and other natural and wide ranges of industrial environments. Our main products are handheld gas detectors, which can detect and monitor various toxic, VOC, oxygen, combustible and flammable gases’ real-time concentration and provide users detection solution and alarm signals against potential dangers to ensure good air quality and personal safety.
Our company started with designing and manufacturing plastic enclosures of electric appliances at the outset, from year of 1997, today we not only have our design and development team for plastic enclosure molding&manufacturing, but also for gas detection system instruments. 
We are experienced in customizing different gas detection instruments according to customers’ requirements. 
Management principle of our company is “Design ability and Technology will lead the trend of our products and future of our company”. 

BlueSens makes sense!
On July 1st in 2001 Udo Schmale and Holger Müller founded BlueSens gas sensor GmbH in Herten, Germany. Both founders are still managing directors of the company.
More than 15 years ago the electrical engineer Udo and Holger, a chemist, decided to collaborate. During the 90s they did their PhDs on infrared-measurement technology at the Institute for Chemo- and Biosensors at the Westfälischen Wilhelms-Universität in Münster.
For more than 20 years the inventive heads of the company have been working on the development, manufacturing and application of modern gas measurement technology. At an early date of their collaboration they realized the market potential of their smart measuring solution, decided to have it patented, and founded BlueSens gas sensor GmbH.
From this very first start BlueSens focuses on the needs of the customer and emphasizes on a close relationship with customers.

Jiangsu Skyray Instrument Co., Ltd. is a Hi-tech corporation with proprietary intellectual property, with registered capital amounting to 461.76 million RMB. It has four wholly-funded subsidiaries: Beijing Bandwise Technology Development Co., Ltd., Shenzhen Skyray Instrument Co., Ltd, Suzhou skyray-environment Technology Co. Ltd and Shanghai B&C Biological Technology Co.,Ltd. Besides, it also has two share-holding subsidiaries: Fujian branch of Skyray Instrument co., Ltd and Jiangsu Center Testing Technology Co.,Ltd. Our head office is situated in the scenic new & hi-tech industrial development zone "KSND", Kunshan, Jiangsu Province. Our company specializes in the R&D, production and sales of analytical and measuring instruments in Spectroscopy, Chromatography and Mass Spectroscopy fields.Skyray Instrument is honored with "Outstanding National Private Sci-Technological Enterprise in China", "Jiangsu Province Hi-tech Enterprise", "Jiangsu Province Software Enterprise" and "Jiangsu Province Technology-Innovative Enterprise" and is selected as "Zero2IPO - Venture 50", "Jiangsu Province Spectral Analyzing Instrument Engineering Research Center", etc. Our products acquire international advanced technology and XRF spectrometers are awarded "National Key New Product" and "Jiangsu Provincial High-tech Product". With wide coverage of application fields, Skyray Instrument provides professional solutions for environmental monitoring and protection, industrial testing and analysis, and other fields.Skyray Instrument, as an industry technology leader, is constantly exploring the pinnacle of analytical field and providing customers with more advanced products and more satisfied services, meanwhile, providing more perfect solutions to electronics, electric appliances, jewelries, toys, food, construction material, metallurgy, minerals, plastic, petroleum, oil, chemistry, medicine and other industries, so as to promote rapid economic globalization.We have been on the international market about 30 years, and have exported a large quantity products to America, Europe countries, Africa, Asia, Middle east, etc.

Pollux is specialized in the development, planning and setup of testing systems.
As an independent and neutral service provider we furthermore operate two testing facilities for turbochargers, combustion engines and components.
Our centrally located companies in Kirchheimbolanden (near Ludwigshafen) and Gommern (near Magdeburg) provide a good connection to the metropolitan areas of the German automotive industry.
The operation of our company-own test benches and test equipment at both testing facilities as well as concentrated development competence in the automatic control engineering is a clear benefit for our customers in both areas.
Our efficient and interdisciplinary teams comprising engineers and technicians provide customized solutions - even beyond the usual standards!