Model 2740B High Security Lock. NSN 5340-01-613-2080 (GSA) - NSN 5340-01-628-4750 (DLA)
Sargent and Greenleaf safe locks have been protecting the assets of banks, businesses and governments...
If a Sargent & Greenleaf Model 2740B's low battery warning signal is ignored for approximately one hundred openings, the lock will go into a "Lock Open Latch" condition. This prevents the lock...