1.High technology barrier 2.Stainless steel 3.CE Certificate 4.Power save Functions& Features:(1) Running stablely without noise and mechanical impact(2) The passing person number of the persons can be set(3) Several ways of working molds for your demand chosen(4) Bi-direction, or one direction permitted, one forbidden, or one direction charged, one for free, and all the working molds set by the ...