Kaba CDX 10 Pedestrian Life Safety Switch Feature

Pedestrian door deadbolt devices, also known as lock extensions, are covered by Federal Specification FF-L-2890B, and its Amendment 3. Pedestrian door deadbolt devices are intended for use on pedestrian doors to secure rooms and Sensitive Compartmented Information Facilities (SCIFs) and come with a combination lock that meets Federal Specification FF-L-2740. Devices approved under FF-L-2890B Type I through Type IV meet life safety requirements.
It is important to check with your local fire marshal (Authority Having Jurisdiction-AHJ) to determine rooms/facilities where the occupancy is equal to or greater than what they consider meeting assembly requirements. This will help you identify which pedestrian door deadbolt device you should use.