Zephyr electronic keypad locker lock 2310 – vertical keypad our 2310/2315 traditional series electronic keypad lock is a highly versatile and cost-effective lock for recreational facilities, fitness centers, country clubs, and employee locker rooms. These locks have an incredibly long battery life, long-term reliability, and a simple user interface so your employees don’t need to waste time and attention worrying about locker locks. features: 10-digit keypad with input button shared or permanent programming manual turn knob with locking cam lever control key override for supervisory access battery life tested to 50,000 cycles powered by two aa batteries rubberized knob for better grip surface or recessed mounting capability available in vertical or horizontal versions 4-digit user code 6-digit control code includes mounting brackets for 1/2″ & 3/4″ material, 2 bracket screws, straight and offset levers, and lever mounting nut note: supervisory control key sold separately