Door Knob with Keypad Keyless Entry Door Lock - Easy Install & Keyless

In this review the Door Knob with Keypad is presented as a budget-friendly, keyless entry option suited to interior doors where convenience matters more than heavy-duty security. The main reason to buy is its straightforward, screwdriver-only installation and simple programmable code system that removes the need for keys in bedrooms, offices, apartments and hotel-style rooms. For users wanting a quick retrofit that supports up to 10 codes and automatic relocking, this is a practical pick; for exterior doors needing high security or long-term heavy use, a more robust deadbolt-style lock is preferable.

Key Features

• Easy installation: Installs in minutes with only a screwdriver and fits common door preparations so most users can retrofit without professional help.
• Multiple access codes: Supports one master code, one passage code and up to eight user codes, letting households and small offices manage access without keys.
• Automatic relocking: The latch automatically retracts and the door locks again about 3 seconds after opening, so you do not need to remember to lock behind you.
• Backup power options: Includes a backup battery port and an emergency power charger to regain access if the internal batteries are depleted.
• Adjustable latch fit: The latch adjusts for 2-3/8 in or 2-3/4 in backset and works with a 54mm door hole, broadening compatibility with many interior doors.

Who It's For

This lock is best for homeowners and renters looking to add convenient keyless entry to interior doors such as bedrooms, studies, garages or shared office rooms, and for small businesses or hotels that need a simple, code-based entry. Its quick installation and multiple user codes make it handy for spaces with rotating occupants.

It is not ideal for exterior front doors where weather resistance and certified high-security hardware are required, nor for installations where long-term heavy daily use is expected without periodic battery replacement or maintenance.

Pros & Cons

Pros

• Easy, screwdriver-only installation makes upgrades fast and affordable.
• Supports up to 10 access codes so multiple users can have unique entries.
• Sturdy, heavy-duty feel reported by users, giving confidence in normal interior use.
• Includes low-power alarm and emergency power charger for added reliability.

Cons

• Battery life is a common concern; requires four alkaline AAA batteries and timely replacement to avoid lockouts.
• Automatic locking cannot be disabled, which may be inconvenient for some passage needs.

Specifications

Brand	Buoan
Power	4 alkaline AAA batteries (two per side of battery box)
Access codes	Up to 10 codes: 1 master, 1 passage, 8 user; 4 to 15 digits
Automatic locking	Automatic relock about 3 seconds after opening (non-disableable)
Backset compatibility	2-3/8 in (60mm) or 2-3/4 in (70mm)
Door hole	54mm diameter
Warranty & support	30-day returns, 12-month replacement for quality issues, 24-hour technical support

Our Verdict

The Buoan keypad door knob is a sensible, cost-effective solution for interior doors where keyless convenience and multiple user codes matter most. It delivers quick installation, reliable automatic relocking and useful backup power options, making it good value for bedrooms, offices and apartments; however, those needing long-term exterior security or worry-free battery life should consider a heavier duty alternative.

Frequently Asked Questions

How many users can I program?
You can program up to 10 access codes total: one master code, one passage code and eight user codes.

What batteries does the lock use and is there a backup option?
The lock requires four alkaline AAA batteries (two in each side of the battery box) and includes an emergency power charger plus a backup battery port for temporary recharging.

Can I disable the automatic relock?
No, the automatic relock activates about 3 seconds after opening and cannot be turned off.