Automatic lever lock is an electronic keypad, offering high-level security to your home Create and manage up to 19 unique key codes Automatic re-lock feature activates after 5 seconds of inactivity Disable keypad when on vacation or using privacy mode Keypad is made from durable silicone, and is backlit by an LED light source for easier use during the night Lock has a battery life of 3 years (battery included), with a low-battery indicator providing plenty of warning time Lock includes manual override backup key