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Qingyi Electronic Technology Co., Ltd., located in the Development Zone of Handan, is situated in the ancient capital of Zhao—Handan, a city renowned for its historical and cultural significance in China. Since its establishment, the company has continuously strived for excellence and innovation, evolving into a specialized electronic enterprise that integrates research, design, production, and sales. It now offers over 30 products across three major series: sensors (transmitters), data loggers, and data acquisition modules. The company's business scope encompasses: soil temperature transmitters, soil moisture (humidity) sensors, wind speed sensors, wind direction sensors, rainfall sensors, atmospheric pressure sensors, indoor/outdoor temperature and humidity sensors, multi-point soil temperature loggers, miniature temperature loggers, air temperature and humidity loggers, air temperature, humidity, and light loggers, wind speed and direction monitors, wind speed and direction loggers, rainfall loggers, small weather stations, soil moisture rapid testers, portable salinity rapid testers, and more. Its products are sold across more than 30 provinces, municipalities, and autonomous regions nationwide. Over the years, Qingyi Electronic has provided comprehensive supporting services to enterprises, institutions, research units, university experimental systems, and group companies. It has become a supplier to organizations such as the Chinese Academy of Sciences and Central South University of Science and Technology, establishing strong cooperative relationships with them. The products have earned widespread acclaim from customers for their excellent design, superior quality, reasonable pricing, and comprehensive service. The company's technological expertise stems from both the continuous learning and innovation of its highly skilled technical personnel and collaborations with various research institutions and universities.