What are Optical Turnstiles?
Optical turnstiles are used in many large corporations and businesses. They have many distinct advantages over traditional turnstile systems or card entry systems. The sophisticated technology used in optical turnstiles includes numerous sensors incorporating a matrix of detection beams. The beams detect each time a person passes through the turnstile. Optical turnstile sensors are also placed at very low levels to deter people from crawling through the turnstiles illegally. There are many ways an unauthorized person can pass through an entry system unnoticed. One common way is tailgating, which occurs when a person follows another into a building after the first person has used his or her ID card to open the door. The use of optical turnstiles can eliminate this practice. If someone enters without using a valid ID card, then an alarm will alert security staff. The beams in optical turnstiles can monitor the number of people entering a building by using the one card, one person system.
