1.Electric mechanics integration,highly integrate. 2.Inductive,untouched,prevent wear, longservice life. 3.Controlled by electricity, open very quickly. 4.With triple password, user password, card password and the confirmation function of report loss black list. 5.Manage conveniently, with inquiry, report loss, delete black list print, statistics functions etc. 6.It keeps the unlocked function of the spare mechanical key. 7.You can choose the remote controller for it. 8.Suit to environment rainproof, waterproof; defend the sunshine direct radiation.