time attendance security door

I have to say that our leaders look really good, every time to buy products which are all very good, before we have to lead the company to buy the time attendance security door, but I was on the time attendance security door very curious, although our company was not installed yet but there are other companies to install it, I also heard a lot about time attendance security door, so it is more curious about it, now the company installed time attendance security door is to provide a lot of ways to us, usually out of the company will not be like before so trouble. As long as a card to access how can how to access.