Alarm Lock DL4100-26D Lock Pushbutton Cylindrical Door Lock,  allows 2000 Users, has a  40,000 Event Audit Trail, is Weatherproof, with a Straight Lever and comes in Satin Chrome Finish.

DL4100 Privacy Cylindrical Pin Locks

Standalone Trilogy® locks with privacy/lock down pushbutton on inner door (mortise & cylindrical pin or pin/prox models).

• Interior LED on the inside housing indicates when the privacy session is active
• Rest assured knowing that you are safe within the room, while locking out unauthorized users.
• 2000 PIN or PIN/Prox user codes; 500 scheduled events; 40,000 audit trail
• Privacy Pushbutton – Push button on inside door to temporarily lock-out keypad codes (programmable option)
• Occupied and multi-status LED indicator, flashes when privacy session is active
• Self-stick instructional signage, supplied (bilingual)
• Keypad or PC programming/reporting
• Right- or left-hand, classroom or deadbolt function models
• 1-3/8” mortise cylinder & ASA strike, matching function supplied, only with 4500 Series
• 5AA battery-pak operated; 60,000 cycles, typical
• 3 Architectural finishes (US3 polished brass, 26D satin chrome, 10B duronodic)
• Weatherproof -31˚ to +151˚F (-35˚ to +66˚C)