PMM-01 is a type of Zamel electronic lock, designed specifically for doors and windows. It is a cylinder lock that uses a code, either mechanical or electronic, to open the lock. The lock can be installed in the door frame or the window frame, and operates with the help of an internal motor. The motor is activated when the correct code is entered, and the lock will then open. It is a highly secure lock, and is very easy to install and use. The electronic lock requires batteries, which will last up to one year, depending on usage.