Features:1) Materials: stainless steel, brass2) With golden edge and silver surface3) Meets ANSI standard, with 5 latch mortises4) With inside dead bolt5) Using IBUTTON 1991,1994,1990 card, contactless, with long life6) With override computer emergency key7) Personalized locking system8) Classified access authorization9) System operation records printable10) Working temperature: -50 - 80°C11) Power: 6pcs AA alkaline batteries12) Weight: 3.8kg/pc13) Dimensions: 350 x 240 x 170mm producing area:Shenzhen, China payment:L/C,T/T,Western Union supplying capacity:3000 Piece/Pieces per Month