Features:1) Materials: stainless steel, brass2) With silver surface and golden edge3) Meets ANSI standard, with 5 latch mortises4) With inside dead bolt5) Using SLE4442 IC card; 10,000 times life6) With override computer emergency key7) Personalized locking system8) Classified access authorization9) System operation records printable10) Working temperature: -50 - 80癈11) Power: 6pcs AA alkaline batteries12) Weight: 3.8kg/pc13) Dimensions: 350 x 240 x 170mm producing area:China