LNDU Smart Door Locks

Smart access for every door

Find the right smart lock for your home.
Woman using an LNDU smart door lock with fingerprint access on a front door

Choose your smart lock in three checks

Check the basics before choosing your smart lock.

Homepage banner for choosing a smart lock with door fit, daily access, and backup access checks

Door Fit

Door thickness, backset, and lock type.

Daily Access

Fingerprint, keypad, app, Apple Home, or key.

Backup Access

Physical key, low-battery alerts, and emergency power.

Door Fit

Check your door setup before choosing a smart lock.

Door Thickness

Make sure your door thickness matches the lock requirements.

Backset

Check the distance from the door edge to the center of the bore hole.

Lock Type

Confirm your current deadbolt or handle setup before installation.

Daily Access

Multiple ways to unlock your front door. Feature availability varies by model.

Fingerprint

Quick recognition for everyday entry

Keypad

PIN code access for family or guests

App Control

Lock and unlock from your phone

Apple Home

Available on select models

Video

See who's at your door on video lock models

Palm Recognition

Wave-to-unlock access on supported models

Backup Access

Plan for practical ways to get in when batteries, keys, or connections need attention.

Physical Key

Keep a mechanical backup ready for everyday peace of mind.

Emergency Power

Emergency power support may vary by model. Check each product page for details.

Low Battery Alert

Look for low-battery reminders and backup access details before setup.

Check Before Buying

Make sure your door setup and daily routine match the lock you choose.

Read Full Compatibility Guide

Smart Lock FAQs

Common questions about setup, access, power, and smart home use.

Most smart locks are designed for common residential front-door setups, but compatibility depends on your door thickness, backset, lock type, and existing hardware. Please review the product page and installation guide before purchase.