Improved security is the main reason for installing a turnstile system, which offers vastly superior access control via deterring and detecting unauthorized entrants. Besides improved security, turnstiles offer many benefits over the use of doors, including effective integration with the facility’s access control system and increased operational flexibility. Unlike doors, turnstiles can both limit the number of people entering or exiting on a valid credential and control the direction of passage. Some also have enhanced detection features, which include identifying loitering in the passage area and forced entry attempts. Turnstiles easily integrate with a building’s access control system, as well as other security equipment such as cameras, to ensure only authorized individuals enter the facility. Unlike doors, turnstiles can limit the number of people who can enter or exit on each presented credential and control the direction of passage.
Turnstiles can operate in a single direction or bi-directionally. Passage modes are independent for each direction and include free pass, controlled passage or locked down. Management can schedule specific modes to activate at certain times of the day to meet operational requirements. In order to enter through a turnstile, a person must first present a valid credential in case of controlled passage mode. This signals the barriers to unlock and allow one person to pass before immediately relocking. Turnstiles fall into three primary categories: opticals, full height and waist high. Depending on the specific application, a different type of turnstile may be preferred.