The APEM Inc. part A018209 Key Switch is a reliable and versatile switch designed to provide secure access control. This robust key switch is perfect for industrial applications that require a high level of security. With its durable construction and compact design, it can withstand varying environmental conditions. The key switch is easy to install and operate, making it an ideal choice for both new installations and replacement projects. Trust APEM Inc.'s A018209 Key Switch to provide a long-lasting and dependable solution for your access control needs.