Standard Line Med-Bin Cart with Electronic Locking Keypad Access, BEST® Lock Over-ride on Cabinet, includes 28-each 5-inch Bins. Standard Package Includes Pull-out Shelf, Bin Drawer Dividers and Labels, and Locking Narcotics Box. Dual Column Cart – Single Wide Narcotics Box. AUTOLOCKING: Drawers Automatically Re-Lock After Access: Pre-set/Programmed Time (un-limited re-lock timing). Accessed by PIN into KeyPad (with key-lock over-ride) (6) D Batteries With a Life of 1 Year (minimum).