Profile: Delta Turnstiles, LLC specializes in manufacturing optical turnstiles for corporate and government lobby entrance control needs. Our turnstiles include crawl protection, which is equipped with anti-crawl through, unique sound card and crawl over detection. We provide Delta 7000-B's barrier arms, which are silent & sleek, and control lobby access. The product's design utilizes LEDs, a digital sound card, and a direct-drive barrier system, which makes for a low-maintenance, but very effective lobby security solution.