SUMMIT is already a leader in locking refrigerators and freezers for many industries, and their keypad lock extends this leadership. This lock offers the most flexibility and convenience in locks, allowing customers to choose how to permit access. SUMMIT's keypad lock is a keyless entry system that is availible on standard doors or wrapped stainless steel doors. This model is battery operated and comes provided with a 9V battery. The Lock comes factory installed and ready to operate. Instructions are provided for use and changing the combination.