The Stand Alone Battery Lock (SABL) from Securitron combines a digital keypad system with a cylindrical lockset designed for medium or high security control. The lock is offered in four architecutral finishes: polished brass (US3), bright chrome (US26), oil rubbed bronze (US10B) and brushed chrome (US26D). The unit is designed for high-volume use in controlling access through electrically locked doors. Programming is possible from the keypad itself, and interfering with or even destroying the keypad will not release the door.