Door Thickness - 38mm to 60mm Fixing - No exposed screws on exterior Handing - Field Reversible levers Backset - 60mm, 70mm, 80mm or 90mm Credentials - 64 bit encrypted smart chip card Audit Trail - 500 events (use of mechanical override included) , kept even in the absence of battery power. Battery - At least 30,000 cycles, 4 AA Batteries Latch Type - Cisa Mortise Latchbolt Warranty - 1 Year