Turnstile Security Systems Inc. Wide selection of quality pedestrian control entrance gates and other products are made from the finest materials and assembled to fit your needs. These entrance gates control the movement of high volume pedestrian traffic into and out of specific areas. Turnstile Security Systems Inc. engineers have exceeded user expectations for reliable, safe and functional gates. Our high standard gates are just one of our many access control products. Our entrance gates are made from the finest materials and assembled to fit y our needs. Our service does not end with the sale and installation of our products, we continue to work with our clients so that all of their pedestrian control needs are met.