http://www.smartersecurity.com/entry-security/fastlane Optical security turnstile technology allows users to freely exit the secured zone while maintaining security for incoming traffic. The Clearstyle 200 optical security turnstile features an aesthetic lobby design and professional strength security. It has been implemented in many top lobbies around the globe and its popularity continues to grow. Learn more about how the ClearStyle 200 can help you meet your security objectives today!