SentrySafe 2557CTS - 9.3 CU Ft. FireGuard EDP Media Safe. Fire and Impact Resistant. The SentrySafe Insulated Record Safe 2557CTS is designed to handle the record protection needs of any business. It carries the UL Class 150-1 hour rated label and is UL Classified for explosion and impact resistance, as well. Choose the 9.3 cu. ft. SentrySafe Insulated Record Safe 2557CTS to provide added "piece of mind protection for your business-critical microfiche, film and computer media.