Protect residential property from forced entry damage during fire and medical emergencies. Safely secure your entrance key in a Residential KNOX-BOX®.   Fire departments gain entry into the residential key box with the Knox® Master Key. It is a high security master key used only by your local fire department for emergency access. The Residential KNOX-BOX® is just one part of the department’s Knox Rapid Entry System. KNOX-BOX key boxes already protect businesses, schools and commercial properties against forced entry damage and delayed emergency response. Key boxes, vaults, cabinets, key switches and padlocks provide complete and secure key control for your local fire department. The Residential Knox-Box is available in a surface or recessed version for permanent mounting on a residence with either a lift-off door or a hinged door. A temporary door hanging version is available for those recuperating from a temporary illness or incapacity.