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How to Use Your Lockdown Key duration 1 minute 9 seconds How to Use Your Lockdown Key How to Use Your Lockdown Key	How to Use Your Lockdown Key Learn how to keep your classroom and office safe with the School-Issued Lockdown Key. disasters & accidents students smoke detector lock (device) university & college education emergency incidents fire protection systems higher education schools security and safety campus education and upbringing law enforcement university & college administration caption complete From Ricardo Reyes 1,489 plays 0