When a fire breaks out or there is a medical emergency, Knox® allows immediate entry into buildings and property without forced entry damage or delay.
Commercial Knox Boxes - Cedarburg Fire Department
KnoxBox® 3200 - Placentia Fire & Life Safety Dept
Fire Department Key Box Installation (Knox Box) - Third District VFC
Knox Box Program
Bay District Volunteer Fire Department
Security Brands Fire Access Box Red for Safety - Knox Lock Key
3200 Series Tamper Switch Mounting Instructions - Knox Box
I do commercial hvac and kind of always noticed these lockboxes
Product - Knox Rapid Access System
KNOX Boxes, Cabinets, Fire Department Key Boxes for Emergency