TOJOIN

TOJOIN – A Trusted Brand in RF and GNSS Testing Solutions

Legacy of Innovation – Since 2006

Founded in 2006, TOJOIN is a national high-tech enterprise and a member of Zhongji Technology Group. With more than 15 years of development, TOJOIN has established subsidiaries in Shenzhen, Suzhou, Kaihai, and Hong Kong, becoming one of the pioneers in the field of telecommunications testing equipment and GNSS positioning systems.

TOJOIN continuously invests in research and development (R&D), working closely with leading universities and research institutes. The company holds numerous patents and has received multiple scientific and technological awards. Product quality is reinforced by maintaining ISO 9001 certification for over a decade, along with international certifications such as CE.

R&D Strength and International Quality Standards

TOJOIN’s R&D team consists of highly skilled experts working in specialized centers such as the Satellite Positioning Technology Center in Guangdong Province. The company has consistently upheld ISO 9001 quality management certification while achieving provincial-level patents and awards, affirming its position as an industry leader.

Comprehensive and Diverse Product Portfolio

TOJOIN delivers a wide range of internationally recognized products designed to meet the demands of telecommunications and RF testing, including:

• Shielding enclosures: automated shielding boxes, manual shielding boxes, and signal filters.

• RF shielded rooms and acoustic chambers.

• GNSS positioning and signal retransmission devices.

• RF accessories: power dividers, attenuators, DC blocks, RF probes, RF cables, RF adapters, terminations, and other measurement accessories.

• Calibration support tools: calibration kits, torque wrenches, and industrial automation devices.

TOJOIN – Driving Innovation in Telecommunications

TOJOIN is not only a manufacturer but also a builder of a gradually integrated ecosystem of products, meeting diverse testing needs from wireless telecommunications, satellite navigation, to RF inspection. With the philosophy of “innovation as the driver – quality as the foundation,” the brand is empowering industries such as manufacturing, telecommunications, and automation to grow stronger and more reliably.