Napco DL3500CRR/26D Trilogy High Security Mortise Classroom Audit Trail Digital Lock, Right Handed, Satin Chrome Plated

Designed for schools, commercial facilities and secure spaces, the Napco Security Technologies Trilogy DL3500CRR/26D is a high-security mortise classroom electronic lock that balances safety, accountability and operational efficiency. This right-handed, satin chrome lock supports 300 user codes and records a detailed audit trail — time-stamped by day, date, time and user — so administrators can monitor access and meet compliance requirements. The classroom function keeps the door unlocked from the inside for safe egress while preventing unauthorized entry from the exterior.

Ideal for access control and security monitoring deployments, the DL3500CRR offers up to 500 scheduled events and holiday schedules, plus Ethernet or 802.11 wireless connectivity for centralized polling, audit retrieval and integration with your existing security or surveillance systems. The weatherproof mortise construction, stainless-steel latchbolt/deadbolt and strong clutch mechanism deliver long-term durability in high-traffic environments. Programming is fast via fingertip, Windows PC or handheld devices, and long-life batteries with low-battery alerts minimize maintenance interruptions.

Upgrade classroom and facility security with a proven electronic lock that combines audit-ready monitoring, networking flexibility and rugged reliability. Contact your security integrator or order the DL3500CRR to streamline access control deployments today.

• Secure classroom access that stays unlocked from the inside for safe egress while preventing unauthorized exterior entry
• Complete audit trail with time-stamped logs (day, date, time, user) for compliance, investigations and visitor monitoring
• Supports 300 user codes and up to 500 scheduled events for flexible, centralized access control and automated lock/unlock routines
• Ethernet or 802.11 networking enables remote polling, wireless audit retrieval and integration with existing security systems
• Robust, weatherproof mortise design with stainless steel latchbolt/deadbolt and Satin Chrome finish for long-term durability in high-traffic areas
• Simple programming via fingertip, Windows PC or handheld tools plus long-life batteries with low-battery alert for reliable standalone operation