19 user code capacity * Switch to automatically locking to unlocked as needed * Keypad illuminates when touched * Full size field reversible lever handle * Fits left and right swinging doors * Fits doors 1 3/8" to 1 3/4" thick * 9 Volt Battery Operated - battery included with 3 year average life. Low battery indicator light * Pre set with random 6 digit code used for programming the user codes * Comes with two random 4 digit user codes (19 user code capacity)