1. Divided into 8 overlapped reticulate detecting areas. Adopting the single incentive frequency technology and forming the symmetrical density of upright magnetic field in the detecting areas. High penetration and sensitivity, avoiding the weak/blind zone of detecting areas. 2. Utilizing the most advanced VFD technology to show the number of people crossing, the times of bell ringing, the area of alarming and the strength of alarming. It can be operated with menus in both Chinese and English, easy and convenient. 3. Adopting infrared scanning from double sides in order to promptly catch the signal. High speed of reset for the large number of the passenger flow detecting (60-70 person/ min., the number could increase in the non-alarming mode). 4. Installing color lights on the four sides of gateposts (120 lights per side) to reveal the alarm-ringing district, which is quite straightforward and could reach all angles of view. Posted from China - Shanghai on 19 March, 2008
