Because our factory is made of electronic products, so our factory installed a lot of time attendance security door, and from work every day, we are going to the time attendance security door, it can do some testing, I think the time attendance security door is still very good, but the inside of the company people are very abide by the discipline, the time attendance security door we also have a dedicated person to manage, so it makes us work become very orderly, never time attendance security door crowded phenomenon, we plant inside the time attendance security door is really very useful.