* Single,8,16,24 zones(33,45 zones optional) 

* MBSU backup battery(optional) 

* Inner size as 76cm width(less false alarm for big body passagers) 

* Mix distance between two Walk-thru:0.3 meters at low Sensitivity, 0.5 meters at high sensitivity 

* Harmless to pregnant woman and heart pacemaker 

* Anti-interferance standard:EN50082-1 

* DSP technology , automatically calibration 

* Weather-proof design(Aluminum Case ) 

* LCD display