A Tripod turnstile is often seen at major attractions, arenas and even fairs. Traditionally, this type is most popular that functions by letting the user insert a pass or ticket into a slot. The machine installed inside the gate reads a bar code from the ticket and if it is granted the sensor in the gate assesses the speed with which the user have passed through. Once done, the electric motor is set on to remove the barrier allowing the user to pass through the turnstile gate.
