Simplex 8148 Combination Entry & Key Override (Less core -  sold separately at checkout) Tough-as-nails combination mortise lock with 1" deadbolt from the leader in top of the line security solutions, dormakaba.  dormakaba has been making high quality security products for over 100 years.  The Simplex 8100 Series is a fully mechanical pushbutton lock designed to retrofit standard  setups.  The 8100 is highly weather resistant and simple to operate.  Entry is gained via a 1 to 5 digit code that is sequential.  Vandal resistant, the Simplex combination locks have found widespread acceptance in high-traffic commercial, institutional, and government buildings.

GoKeyless™ is a factory trained and authorized dormakaba Simplex® dealer. Sales, service, support, valid warranties. It's why thousands of clients around the world choose GoKeyless™ for their security and access control needs each year.