Our products are widely used in optical communication network construction and maintenance, optical sensing network systems, and the production of optical components and equipment. Some of our products are also exported overseas, receiving consistent praise from domestic and international customers for their quality and reliability.

Our factory, located in Shanghai, China, spans over 3,000 square meters and is divided into four key sections: the production workshop, research and development center, warehousing center, and quality inspection center. With a production capacity of up to 500,000 units annually, we are well-equipped to meet market demands.

Our technical team comprises experts from renowned domestic and international enterprises, each bringing an average of over 15 years of industry experience. With this extensive expertise in fiber optic testing industry, utilizing advanced imported manufacturing equipment, and adhering to a rigorous quality control system, we ensure the precision of our key product parameters within ±0.1dB. This guarantees highly accurate measurement results during use, providing reliable performance for your applications.

All our products are developed with 100% proprietary intellectual property, showcasing our dedication to innovation and excellence. Alongside expanding our brand's presence, we actively offer OEM and ODM services tailored to the unique needs of factories, research institutions, communication network operators, and equipment suppliers. Our customizable solutions are designed to deliver professional-grade performance and precision, helping our partners achieve their goals with confidence.

At Joinwit, we are committed to pushing the boundaries of innovation and precision in fiber optic testing. With a steadfast dedication to quality, customization, and customer satisfaction, we strive to empower businesses and researchers worldwide with reliable solutions that drive progress in optical communication and beyond.