Detailed product description Made of plastic mould or crystal detection gate, full of beauty and elegancy. The anti-theft system is a new state-of-the-art high-tech electronic unit exhibiting innovative operation and with extremely high detection rates. Immune to "electronic noise", which can interference some system working. Adopt double-frequency transmitting and receiving technique. Use computer chip to memorize and save the data. Adjusting the system with software to insure system reliability. Computer terminal can work with six channels. When multiple channel works, each channel can surveillance and alarm, and each channel synchronizes, and have no interference between each other. It can detect as small as 3cm labels. The width of path is 800~1200mm. Suit for the disability to pass and coincident to rule of fire fighting law. It can be combined to double or multiple paths, and can be installed either on the floor or pedestal. Packaging: carton