... mechanical, digital door lock Operation way of mechanical password door lock 1,There are 10 digit keys and ... and can use 1 to 11 digit as ones password,such as:2 or 49 or 6825 or ... the user want to change the password,he can turn the existing password keys(set by himself before) clockwisely ... 180 degree,then reset the password as the above method.6,When finishing the password setting,the user have to ...