Features: 1) Electronic open with override mechanical key 2) Easy suspending of lost card, safe 3) Three time fraud trial damage the card 4) Luxury and elegant 5) One card open multiple lock 6) Suitable for villas, no need encoder and computer Specifications: 1) Materials: stainless steel, brass 2) With luxury design for villas and residential buildings 3) Meets ANSI standard, with 5 latch mortises 4) With inside dead bolt 5) Using Ibutton card 6) With override computer emergency key 7) Personalized locking system 8) Classified access authorization 9) System operation records printable 10) Working temperature: -50 C- 80C°C 11) Power: 6pcs AA alkaline batteries 12) Weight: 3.8kg/pc 13) Dimensions: 350 x 240 x 170mm Packing: 6pcs/ctn