The company was established in Shenzhen in 2006. It is the earliest professional factory in China to develop and produce line seekers. It currently has two independent brands: "Smart Rat" and "NOYAFA". The "Smart Rat" brand has become synonymous with the industry.

The company has successively passed ISO9001 series quality system certification, CE certification, FCC certification, ROHS certification, and has obtained a number of technical patents such as appearance, utility models, and inventions in the fields of technology development and application. The company's products have been widely used in major domestic telecommunications, radio and television operators and network wiring systems, and have won the recognition and trust of overseas customers from Europe, America, Australia, Asia and other countries.

The company's current main products include wire search instruments, wire search instruments, wire search instruments, wire search instruments, wire search instruments, cable trackers, cable length testers, network testers, breakpoint testers, and video monitoring wire search Linear device, digital audio line hunter, underground cable detector, engineering treasure, fiber optic fault tester, optical power meter, stable light source, red light pen, high-definition line tester, GPS acre meter, laser range finder, check Telephone, electric pen and network set tools, etc.