Tailgating detection that protects your space and your revenue

Tailgating detection identifies when more than one person enters through a door using a single unlock. When a door or turnstile is unlocked, Kisi begins monitoring the entry, and an AI-enabled camera uses line-crossing analytics to track how many people pass through. If the number of crossings doesn’t match the number of unlocks, Kisi flags the event as tailgating and logs it for review.

You’ll need a Kisi Controller to manage door unlocks and an AI-enabled camera that supports line-crossing analytics. The Controller triggers the unlock event, and the camera tracks how many people walk through the doorway. Cameras like the VORTEX FE931-EHV or VORTEX FE912-H provide the analytics needed for accurate tailgating detection and can be purchased directly from Kisi. Kisi also supports Meraki MV33 and MV93 for tailgating detection, giving you flexibility if you already use Meraki in your space. Readers or terminals can be added for smooth credentialed entry.

Yes, you’ll need an AI-enabled camera that supports line-crossing analytics to use tailgating detection. Cameras like the VORTEX FE931-EHV or VORTEX FE912-H meet these requirements and can be purchased directly from Kisi. If you already use Meraki, Kisi also supports MV33 and MV93 models for tailgating detection, giving you flexibility with your existing setup.

Tailgating detection helps you identify when people enter without using their own credentials, reducing unauthorized access and unpaid visits. It also creates a subtle psychological effect – when people know entries are monitored, they’re less likely to follow others in or bypass the system. Because each event is logged with clear entry data, you get better visibility into who’s actually on-site, which improves attendance tracking, reporting, and overall operational oversight.

You can estimate your potential revenue recovery by using our tailgating ROI calculator. It helps you quantify how much income your gym may be losing from unpaid or unauthorized entries and projects the gains you could see once tailgating detection is in place. Just enter your membership count, average visit frequency, and estimated tailgating rate to get a personalized ROI estimate.

Tailgating happens when someone follows an authorized user through a door without using their own credential. Piggybacking is similar but typically involves the authorized user intentionally letting someone in. Kisi detects both behaviors by monitoring each unlock event and tracking how many people cross the doorway. If more people enter than the credential allows, the system flags it in real time, whether it’s tailgating or piggybacking.