Where people are counted going both in and out of an area, and the counters know in which direction they were moving. Video and thermal counters provide directional counting. Some infra-red beam systems rely on you dividing the count by two.
Retail Sensing have nearly 50 years experience in measurement and control. We have 15000 video counting systems installed in over 40 countries.
10 Stocks Street, Manchester, M8 8QG, UK