This round input button is designed for both exterior and interior doors that require key access and enhanced security. It allows for convenient locking and unlocking with a single switch, making it ideal for residential and commercial applications. Key Features: - High Security: Complies with ANSI class ratings exceeding 3 to 200,007 cycles, ensuring long-lasting performance. - Durable Materials: Constructed from high-grade copper and stainless steel, featuring a matte black finish that resists corrosion and wear. - Smooth Operation: Designed for a seamless user experience, the soft-touch button provides a satisfying response for everyday use. - Easy Installation: Includes all necessary fittings for straightforward setup, allowing you to upgrade your door hardware quickly. Applications: - Home Use: Perfect for securing entry doors, providing peace of mind for families. - Commercial Spaces: Suitable for offices or retail environments where secure access is essential. - Renovations: An excellent choice for updating the hardware in older buildings while maintaining modern security standards. This input button combines functionality, style, and durability, making it a reliable choice for anyone in need of secure door access solutions.