The Simplex 1000 Series lock provides fully mechanical push button access control with no electrical wiring, electronics, or batteries. Exterior access is by combination. Egress is by interior lever and is free at all times. The lock meets American with Disabilities (ADA) standards. Simplex 1000 Series locksets are ideal for limiting access to high-traffic, security-sensitive areas in commercial, institutional, residential, and industrial buildings. These locks are ideal for locations with a high turnover rate such as date processing centers, employee entrances, R&D labs, and restricted areas.