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Inform visitors that the grounds are under 24 hour video surveillance.
Keep personnel informed of emergency exit doors that trigger alarms.
Clearly marks a restricted access area where admittance is prohibited.
Inform personnel of no admittance without a permit for specified facility.
Notifies workers and visitors that they are entering an area with no exit.
Keep desired locations closed off from trespasser by denying admittance.
Alert others that they're entering a restricted access zone for employees only.
Keep guests from wandering around the premises by reminding them to register upon arrival.
Warn anyone in workplace that the area they are entering is not an exit.
A graphic can mark an emergency exit regardless of language or literacy.