Shaanxi Top Hong Electronic Technology Co., Ltd. (referred to as Top Hong) is mainly engaged in independent research and production of sensors, inheriting the advanced technology of imported sensors. It has been deeply rooted in the field of electrochemical sensors for many years, and has developed lead cured oxygen sensors, carbon monoxide, hydrogen sulfide and other toxic and harmful gas sensors. Its products cover various industries such as industry, agriculture, environmental protection, municipal engineering, new energy, and are exported to overseas markets. Top Hong Sensors is a rising star in the sensor industry, composed of a group of professional teams with dreams and aspirations. In the current situation where foreign sensing technology is far ahead of China, China's industrial development has always been constrained by the monopoly of foreign enterprises. Developing China's own sensors has become the mission of Top Hong guys. We will focus on multiple industries in the future, promote the spirit of craftsmanship, and develop more high-quality sensors suitable for multiple scenarios and industries in the fields of electrochemistry, infrared, laser, semiconductor, etc., to contribute our efforts to the development of China's industry.