The new G3 generation MagShoe? is portable and, depending on the model, weighs 48 kilograms (and can scan up to 18 inches from the base of the passenger's footwear) and 33 kilograms (and scans up to 8 inches from the base of the passenger's footwear) and can be deployed quickly by existing security personnel, who can integrate the MagShoe? into their current security routine. http://biz.yahoo.com/e/131119/idoi10-q.html