The Yale 68800601 Electric Rim Lock is a dependable surface mounted electric locking solution designed for controlled access. It features a sturdy latch bolt, fixed external and internal cylinders, and a secure button lock with under hatch and sub lock roof for enhanced protection. Supplied with three keys, this lock is engineered to operate exclusively with a 15W / 12V transformer, making it ideal for residential or light commercial entry systems requiring reliable electric control.