I visited Digitalor's booth in China Public Security Expo (CPSE) 2015 in Shenzhen China to look for Access Control System and planned to visit the company in the next 2 days later. Bad luck I missed the trip. In January 2016, I went back to Shenzhen again to visit Digitalor Company and had a chance to see many products included U-Wei the old name of SmarRack. I have never seen any product like this before. What is it? How does it work? and Who is the target customer? With the confusion but I was interested in it