Heat Activated Fire, Water and Smoke Resistant Door Seal With 30 Minute Interior Heat Barrier Rated at 1400°. Based on Independent Lab and Material RatingsDeluxe LED Programmable E-Lock Panel Accepts 3-8 Digits With Silent ModeEmergency Override Key To Protect Against E-Lock FailureFully Carpeted Interior Includes Adjustable Shelf2 Live Bolts and Fixed Pry-resistant Lip on Back of DoorHeavy Duty Steel Construction W/ Continuous WeldsHing Design Allows Door To Be Opened Beyond 180° For Easy Access