AMSEC ESL5XL lock features: Replaces most mechanical combination locks and easy installation and operation. Attractive chrome finish ABS housing with a backlit alphanumeric keypad. One user code and Factory Reset Combination for resolving lost combinations without requiring expensive service calls. Electronics are encapsulated within the lock and are sealed to prevent possible moisture-related failures. Cable fits through a ½” spindle hole without cutting and re-crimping connector. Beep and flash from every keystroke gives maximum feedback to the user. Lock can be programmed to silence the beep in stealth mode. 15-Minute Penalty Lockout after four incorrect entries protects against manipulation attempts. New swing bolt reversible lock design for right- or left-handed installation. Lock “auto-locks” when boltwork is thrown to prevent safes from being left in a day-lock position. One 9-volt battery can be easily replaced in the keypad housing. Pending U.L. Type 1 listing.