Upgrade Your Security with 3-Digit Key Number Lock 631

Smart homes are becoming increasingly popular due to the convenience and security they provide. One of the key components of any smart home is the door lock system. There are various types of door locks available, but one that’s gaining popularity is the 3-Digit Key Number Lock 631. In this article, we will discuss how upgrading to this type of lock can enhance your home security.

Upgrade Your Security with 3-Digit Key Number Lock 631

What is a 3-Digit Key Number Lock?

A 3-digit key number lock is an electronic door lock that replaces traditional keys with a numeric code system for locking and unlocking doors. This type of lock eliminates the need for physical keys, making it more convenient and secure than traditional locks.

Benefits of Using a 3-Digit Key Number Lock

There are several benefits to using a 3-digit key number lock in your smart home:

  • Increased security: Since there’s no physical key required, there’s less risk of someone finding or stealing it.
  • Convenience: You don’t have to worry about losing or misplacing your keys anymore – all you need is memorize the unique code.
  • Easy access control: You can easily create multiple codes for different people who require access – family members, guests, employees etc.
  • Versatility: These locks come in different configurations from outdoor combination padlocks to indoor deadbolts that offer even greater levels of protection.

Introducing 3-Digit Key Number Lock Model #631

One such versatile model worth considering for your smart home is our top pick – Model #631 made by Rulart Inc. Here’s why:


  • Three independent unlocking methods – secret passcode (master) + emergency mechanical key+ card swiping function;
  • To ensure highest level safety possible on this device each password entry has built-in non-leakage technology
    keep unwanted intruders out and unexpected visitors won’t be let in.
  • Employee feature – create customized access codes for your employees or anyone else who needs frequent access, with recurring entry times you can set up and revoke keys digitally without having to manage physical keys.

Easy setup process

Model #631 is very easy to install and program. Simply follow the step-by-step instructions provided in the user manual for a hassle-free installation.


Upgrading to a 3-digit key number lock such as Model #631 from Rulart Inc offers an effortless way of adding more security and convenience into your smart home system. It offers increased ease of use, reliable safety measurements, versatility all while being straightforward when it comes to the initial setup process.


Sure, here are three popular FAQs and their answers for the ‘Upgrade Your Security with 3-Digit Key Number Lock 631’:

How do I change the combination on the lock?
Answer: To change the combination on this 3-digit key number lock, follow these steps:
Open the lock using the current combination (default is 0-0-0)
Hold down the reset button on the bottom of the lock while turning each digit to your desired new combination

Release the reset button and your new combination is set

What materials is this lock made of?
Answer: The construction material of this 3-digit key number lock is zinc alloy, which makes it highly durable and resistant to wear and tear.

Can I use this lock outdoors or in wet conditions?
Answer: Yes, this 3-digit key number lock can be used outdoors or in wet conditions because it has a rust-resistant coating that protects it from weather-related damages such as corrosion. However, for best performance, we recommend keeping it away from direct contact with water whenever possible.