The Simplex 5000 lock provides fully mechanical pushbutton access control without any wiring, electronics or batteries. Exterior access is by combination. Egress is by an exit device (sold separately) and is free at all times. The Simplex 5010 is ideal for controlling access to high-traffic, security sensitive areas in commercial, industrial, educational, governmental, lodging, and multi-unit residential settings. Perfect for locations with a high user turnover rate such as data processing centers, employee entrances, R&D labs, apartments, dormitories, and restricted areas in hospitals and airports.