Function a nd Character: (1) The door is anti-corruption, moisture -proof and fire-proof. (2) The door is formed in one piece, steady, robust and long service life, easy to be conveyed, mounted and dismounting. (3) No blind area and each spot of search coverage are evenly detected. (4) Accurate location: 6 independent distributing search coverage and acousto-optic alarm when target is found. Panel indicator light directly displays the alarming area which can exactly indicate the target. (5) Self-diagnose function. There is a self-diagnose system in the door. It will cheek the hard ware and software of the door automatically whenever the door is activated. When there is a problem, it will give a messenger on the wrong. (6) Micro-processing technology: The micro-processing system gives an automatic jump to the controlling part of the system. Now you can set the system and its flexibility in the controlling panel easily (7) Complex circuit, infrared installation and computer automatic identification decrease the mistakes and missing dramatically. It can automatically show the alarm frequency and numbers of passed people. (8) The digital filtering system of DSP signal processing offers high ability to resist electromagnetic interference, touch and impaction which makes the door can be used in crowded area. (9) Adjustable Flexibility: We can reach the security requirements by adjusting the flexibility. There are 100 flexibility degrees in each detective area. (10) Automatic saving and showing ambient disturbed condition, making for choosing fabricating yard. (11) Continuous work and impossibility of escaping from detection at any time. (12) Password protection setting: You can change the system, flexibility and other setting only after typing in the pass word correctly and only authorized person allowed to change the setting can't change the settings. (13) Adoption of weak magnetic field launching technology will not cause harm to heart pacemaker wearer, pregnant women, disks.