Electronic Deadbolt Door Lock, Keyless Entry Knob with Keypad, Digital Smart Knob, Auto-Lock

Two Unlocking Ways: Our Keyless Entry Deadbolt Lock Includes 2 physical keys + customizable user codes ( digits). Keys serve as backups during emergencies (e.g., power outages), while codes allow secure access for family and friends.Multiple Functions: This electronic deadbolt lock features Silent Mode, and a backlit keypad. Silent Mode blocks disturbances; the backlit keypad ensures easy code entry day and night.Carbon Steel Gears: The keypad deadbolt lock is made of carbon steel for enhanced security; the deadbolt mechanism withstands 25, rotations for long-lasting use; no additional hardware required.Auto-Lock Function: Our deadbolt lock has an auto-lock function (on/off selectable). When enabled, the sensor detects door closure and locks automati(Requires automatic door lock sensor)Low Battery Alert: The digital door knob powered by 4 AAA batteries (not included) with up to 12 months of life. A red indicator light signals low power, prompting timely battery replacement.Easy Installation:This keyless deadbolt lock fits standard doors (1-3/8" to 2-1/2" thick, left/right-handed). Includes adjustable latch (2-3/8" or 2-3/4" backset). Install in 15 minutes with a screwdriver, suitable for bedrooms, homes, apartments, hotels, and offices.