When buying this one time attendance security door is seeing this store this product in doing promotions, I started to think of a time attendance security it door our company sooner or later will be used, when we buy is not a will do promotions, but now is not the same I buy now, you can also enjoy the very preferential activities, so I just buy now at that time also did not think this is a time attendance security door is so good, if not to buy their own use but I really don’t believe there is such a good one with since the products, we use this to a time attendance security door I recommend but deliberately gave me good friends.