All Turnstile models are space efficient security barriers, with a compact design, yet offer sufficient space to integrate any access control system. They can be mounted with display, passage counter, card reader, token operation traffic lights, command console, alarm system against unauthorized entries, interfaced with a PC through a RS232(RS485, TCP-IP)line. The unique dropping arm feature provides a fail safety solution in case of an emergency or power failure, providing egress in case of crisis evacuations. Durability with minimal maintenance means years and millions of trouble free passages. The turnstile creates a secure environment in, for example, a reception area.