Introduced in 1964, the dormakaba Simplex 1000 was one of the first mechanical push-button locks to offer keyless access control. Its five-button design provides over 1,000 possible combinations without the need for batteries or wiring, making it ideal for remote and high-security environments. The Simplex 1000 set a new benchmark for mechanical access solutions and helped shape ANSI/BHMA Grade 1 standards for durability and performance. Its continued use today reflects its lasting impact on the industry and the evolution of secure, non-electronic entry systems.
