All Thor III Vault Doors are UL Rated for the selected class. Standard & custom sizing is available. Each Class 1,2, and 3 door include the following -Three movement time lock with reset and release feature -Two mechanical Group 1 combination locks -Day lock -Emergency vault ventilator with pass through -Alarm door contact -Alarm rate of rise thermostat -Acrylic day gate with key lock outside and thumb latch inside -Nonskid threshold cover.
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