Manufacturer Alarm Lock Model DL3500DBL Entry Features Keypad, Audit Trail Finish Optional Handing LH – Left Hand Backset 2 3/4 Standard Door Thickness 1 5/8″ to 1 7/8.” Operation Advanced digital electronic door lock with audit trail Operating Temperature Weatherproof -31? to +151?F (-35? to +66?C) Keypad Rugged, vandal-resistant, all metal, 12 button programmable for multi-level access functions including group or individual user codes, master and management codes, passage and emergency or service code, lockout and remote override capability and allowable entry time from 5 to 15 seconds. Audit Trail 40,000 entry activity log can be polled to the Data Transfer Module (AL-DTM), any PC using Windows Software, and/or can be on-site printed using the hand-held infrared printer (AL-IR1). Activities included are: unlock/lock events, program mode changes, user entry, keypad lockout, remote release events, unauthorized code attempts, etc. Strike 1 1/4 x 4 7/8 strike included Power 5 AA alkaline batteries, supplied. Audible low battery alert, visual and audible entry indicators, unique Flex Drive motor. 100,000 cycles typical. Door Prep Standard ANSI A115 Mortise prep, modified by adding additional through-bolt holes Standard Key Override Cylinder 1 3/8 (3.5cm) mortise cylinder supplied. Will Accept 1 3/8 to 1 1/2 (3.5 3.82cm) mortise Cylinder. Deadbolt function supplied with cloverleaf Cam Compliances UL listed to the 10C Positive Pressure Specification and FCC certified. ADA compliant levers. ANSI/BHMA Durable BHMA Grade 1 Lockset Warranty 2 Year Warranty Weight 12.0000