This anti-theft system is patented in such countries as the USA, Germany, Taiwan, China and other countries. It has been industrially tested. The system has CE and TUV adequacy approvals, it has gained many recognitions and prizes all over the world (Perfect Design and Safety, effective anti-theft functions, prizes from Mr. Lee, former President of TAIWAN, R.O.C., Scientific Research Invention Prize, National Golden Brain Invention Prize, Globally Invention Prize from Germany, Asia-Pacific Excellent Commercial product golden medal, Taipei Invention Prize and Golden medal from Consumer Good Record Manufacturer of TAIWAN). In almost 10 year of commerce it has been installed on at least 60,000 BMW and Mercedes cars and on many other manufacturer cars.

"Great Guard" qualities: a mechanical valve of very high precision which locks the car's wheels (it's impossible to drive away even when the engine is started), an independent control system which is not connected with the car's electrical systems (except the car's battery), which ensures safe driving while no electricity is being consumed while driving. When activating and deactivating the system no sound signals are made (in compliance with some countries' environmental protection regulations). Since none of the factory-built brake system burls' are reformed the pressure made by the system is corresponding to all the car manufacturer's provided technical demands. The system also has such functions as a warning about a low car battery and the posture of the brake system.