Schlage Electronic Keypad Locks & Deadbolts. Ready to use right out of the box. Uses Key or Keypad to operate; lock comes with 2 keys. Add, change or delete up to 19 user codes in seconds. Comes with a 9-volt battery with an average three-year battery life and low battery indicator. Easy installation, fits most standard door preparations. Illuminated, wear-resistant keypad provides easy visibility. FE Series are field reversible for RH/LH doors.