About Us

Professional explosion-proof temperature instrument and temperature sensor manufacturer

Company Profile


Located at the Middle Section of No. 3 Road, No. 2 Industrial Park, Nanyang Hi-tech Development Zone, Nanyang Huaye Explosion Protected Instrument Co., Ltd. is a National High-tech Enterprise, a “Specialized and Sophisticated” SME of Henan Province, the organizer of Henan Platinum-based Technology Temperature Sensor Engineering Technology Research Center, and a National Technology-Oriented SME. We are specialized in R&D, production and sales of temperature sensors, explosion-proof instruments and explosion-proof electrical products.

Founded in 1997, our company covers a land area of 12,500 m2 and possesses a building area of 15,000 m2. Over twenty years of steady development, we have been introducing advanced production equipment and detection instruments. At present, we possess a R&D team that is led by recruited doctors and mainly composed of personnel with a master or bachelor degree. Our production scale, technological level and R&D ability are advanced among peers at home. Relying on the resource strength of the explosion-proof industry in Nanyang City, we have built a typical hi-tech enterprise integrating “industry, education and research”.

Our products are classified into three major categories: temperature sensors, automation instruments and explosion-proof electrical products, involving over one hundred of varieties. We possess more than thirty independent intellectual property rights and patented technologies, including two invention patents. With years of production experience, strong technical force and high-quality employees, we can guarantee stable product quality, advanced performance indicators, and safe and reliable operation.

We have built a sound quality assurance system, has taken the lead to pass the IO9001:2015 international quality system certification, EU ATEX certification and Russian EAC certification, and has acquired Compulsory 3C Certification for Industrial Products, Production License for Manufacturing Measuring Instruments in the People's Republic of China, Safety Mark Certificate for Coal Mine Products, and various explosion-proof product certificates of conformity. “Zhang Heng” Brand temperature sensor and measuring instrument have been rated as Famous Trademarks of Henan Province.

Our products have been widely applied to petroleum, chemical, pharmaceutical, coal mine, steelmaking, shipbuilding, military as well as key projects. Our product have also been sold to many countries and regions such as the United States, Russia, Britain, India, etc. We have established a long-term and stable collaborative and supporting relations with large coal fields, oil fields, refineries, motor plants and general equipment manufacturing plants.

We adhere to technological innovation and scientific management, insist on professionalism, concentration, and focus, make us bigger and stronger in temperature sensors, explosion-proof instruments and explosion-proof electrical products, actively develop overseas markets, and leverage our expertise in explosion-proof technology.

We warmly welcome friends from all walks of life as well as new and regular customers to visit us and negotiate for cooperation!