Pedestrian turnstiles span a wide security range. Matching the level to the risk prevents both nuisance delays and unauthorized entry.

Security levels

• Low: tripod turnstiles deter casual entry but can be bypassed by climbing.
• Medium: flap and swing barriers with alarms stop most tailgating.
• High: full-height turnstiles block climbing entirely for outdoor or high-risk sites.

Anti-tailgating methods

Anti-tailgating (passback) uses sensor arrays to allow exactly one person per valid credential. If a second person follows, the lane alarms and the barrier holds. Higher-security lanes add a mantrap (two barriers in series) so only one person is ever in the chamber.

Where to apply each level

Offices use medium-level flap/swing with anti-tailgating alarms; stadiums and factories use full-height; airports and datacenters add mantraps. Our applications guide maps levels to sites.

Frequently Asked Questions

What is anti-tailgating on a turnstile?

Anti-tailgating lets exactly one person pass per valid credential; a following person triggers an alarm and the barrier holds.

Which turnstile prevents climbing?

A full-height turnstile prevents climbing because it encloses the user from floor to ceiling.

What is a mantrap turnstile?

A mantrap uses two barriers in series so only one person can occupy the chamber at a time, maximizing accountability.