Simplex 5021XSWL - Combination Entry/Key Override
Industrial strength combination lock from the leader in top of the line security solutions, dormakaba.  dormakaba has been making high quality security products for over 100 years.  For a security lock, the highly weather resistant Simplex 5000 Series earns a Grade 1 rating from ANSI. (American National Standards Institute)  This marks the highest rating they give out for quality.  Your Simplex 5000 grants entry upon successful validation of a 1 to 5 digit sequential code which you pre-program into the lock.  Vandal protected, the Simplex series of PIN based locks find widespread acceptance in high-traffic commercial, institutional, and government buildings.