Optical Anti-Tailgating Detection System

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The Optical Anti-Tailgating Detection System monitors the entry point into a secured area using proprietary sensing technology that profiles objects as they pass through the device. Unique algorithms process the data allowing people with briefcases or pull bags to pass without causing alarms. In an effort to reduce wiring cost, TURNSTILES.us offers an integrated Door Prop Alarm, Lock Relay and the option to install status indicators on the opposite side of the door, making this the most accurate and cost-effective anti-tailgate device in the industry

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This unique optical security device, using proprietary sensing technology to detect direction and tailgating, is perfectly suited for areas requiring tighter security. The potential applications for the Optical Anti-Tailgating Detection System are plentiful. Compatible with all card reader technologies and access control systems, the system helps to ensure that only one individual enters through a secured doorway for each valid authorization. Its subtle design does not distract from interior aesthetics and it mounts easily on standard door frames and hallway walls. The Optical Anti-Tailgating Detection System consists of two self-contained, narrow door/wall mounted units providing both local and remote alarm indications.

Card In/Out, Card In/Free Exit, and Card In/Out Maglock

Data Sheet – Optical Anti-Tailgating System
Wiring Diagrams – Optical Anti-Tailgate





  • Tailgate detection uses 32 infrared sensors to ensure that only one person enters a secure area per valid authorization
  • Utilizes the building access control system to grant or deny access to the facility
  • Mounts easily on standard door frames and hallway walls
  • Hands-free, barrier-free, powerful detection
  • Blends in with architectural styling, black with plexiglass cover
  • Field configurable for card-in/card-out or card-in/free-exit operation
  • High throughput (60 people per minute) is dependent upon the access control system response time
  • Integrated Lock Control Relay helps provide faster throughput
  • Integrated door prop alarm
  • Encourages employees to maintain access control procedures


Above: Standard Tailgate Unit and 1-gang status indicator for use on the opposite side of the doorway



  • Power: 12-24VDC @ 500mA
  • Control Inputs: N/O-Momentary “Valid A card” (max. 1 sec. pulse closure)
    N/O-Momentary “Valid B card” (max. 1 sec. pulse closure)
    N/O-Maintained “Bypass”
    N/C-Maintained “Door contact”
  • Status outputs: N/O and N/C Lock contact
    N/O and N/C Alarm contact status
    N/O and N/C Door contact status
    N/O and N/C A passage complete contact status
    N/O and N/C B passage complete contact status
  • Size: 2.0” W x 54.7” H x 2.6” D
  • Mounting: Direct mounting to the door frame or wall
    Optional spacer mounting kit available
  • Finish: Black with IR plexiglass cover

*Shown on Revolving-Door Type Full Height Turnstiles




Anti-Tailgating System with Access Control Readers on Turnstile and Door

Anti-Tailgating System on Free-Standing Steel Posts with Glass ADA Gate
See more from this installation: Telemundo – Miami, FL


Installation is available now! Learn more about our design-build process.



  • Programming and Systems Integration with selected options
  • 1 Year of Telephone and Scheduled Remote Desktop Support
  • Contact us For More Information

Additional information

Weight 20 lbs
Dimensions 10 × 8 × 54 in

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