iulock IU-20 Code Door Lock, Electronic Door Knob with Keypad and Key, Auto Lock, Waterproof, Passage Function, Long Battery Life,50 Codes, Easy to use and Install for Office/Warehouse/Bedroom/Garage

[Keyless Entry & Ergonomic Design] This keypad door knob lock allows you to program up to 50 user access codes and 1 master code.the code in length can be 4 to 15 digit,easily programmed at the backlit keypad in seconds. An idealistic simplified look brings trendy style to the exterior & interior doors of your office, home and rental property,etc. | [Enhanced Security & Durable] This electronics keypad lock has the strength and durability optimized for commercial applications.Heavy-duty and contemporary design,premium metal construction and solid lock cylinder,easy-to-grasp handle.IP65 weatherproof,works great in any weather.Ideal for your entrance doors,front door entry,garage,utility room doors,side, backdoors,bedrooms. | [Multi-functions & Smart] Auto-locks behind you for peace of mind.Password disguise.Silent mode.Depending on your needs,you can enable Passage Mode.Backlit keypad will lit when pushing any button.Low battery warning,and you can use type-c usb backup (cable not included) in case that batteries run out.The backup keys are compatible with most mechanical keys. | [Easy Install & Universal Fit ] This keyless entry door knob is a direct replacement for your standard doors,the free rotating knob makes it fit both left and right handed doors,door thickness1-3/8 Inch to 2-1/2 Inch,with a 2-3/8 Inch or 2-3/4 Inch adjustable latch. Install in minutes with just a screwdriver. | [Lifetime Customer Support] No more lockouts.It is an awesome gift that can bring new excitement and convenience to you.Iulock door knob comes with a lifetime mechanical and finish.