Features: 1) Materials: stainless steel, brass 2) With button card key, with waterproof, fireproof and long life properties 3) ANSI standard 5-latch mortise 4) With inside dead bolt 5) Using IBUTTON 1990 card, contactless, with long life 6) With override computer emergency key 7) Self programming,no need computer or encoder 8) Classified access authorization 9) System operation records printable 10) Working temperature: -50 - 80°C 11) Power: 6pcs AA alkaline batteries 12) Weight: 3.8kg/pc 13) Dimensions: 350 x 240 x 170mm