DSI relentlessly focuses upon reliability, security, and throughput. This video taken at ISC West in 2018 shows throughput for DSI’s 831 series barrier optical turnstile:
This is throughput for the 880 series turnstiles as demonstrated at ISC West in 2018:
Are you working with a tight space? If you have a tailgating problem, it might make sense to have a conversation with us. No pressure, no cost.
Most barrier optical turnstile projects have a custom element. Do you need extra heavy duty service? Do you need to match the lobby decor?

For more information or a site visit, please contact Denning or visit DSI’s web site.