Keypad Door Locks Unveiled: An In-Depth Guide to Modern Security

In-Depth Guide to Keypad Door Locks

Tired of the perpetual jingle of keys and the anxiety that accompanies the thought of losing them? The era of fumbling with keys is a common frustration many of us can relate to. However, the good news is keypad door locks have emerged as a solution to this age-old problem. Keypad door locks eliminate the need for physical keys, replacing them with a button or digital interface that simplifies access. 

Beyond the fundamental shift in entry methods, these locks offer a range of advantages. The foremost is heightened security through features like customizable access codes, allowing you to grant temporary or permanent access to different individuals. Ease of use is another hallmark of keypad locks. All you must do is memorize a personal code and make your daily routine of locking and unlocking doors a seamless experience.

Let’s delve into everything you need to know about keypad door locks and how they provide a smarter and more convenient home security experience.

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What are Keypad Door Locks?

Keypad door locks are electronic security devices that control access to a space using a numeric code entered via a touchpad or keypad. Unlike traditional locks that require physical keys, these modern counterparts employ modern technology to grant or deny entry.

They come in various types, and their power requirements can differ. While digital keypad locks typically rely on electrical power, either through batteries or a wired connection, mechanical keypad locks operate without the need for electricity.

How Does a Keypad Door Lock Work?

The working of a keypad lock involves a user inputting a predetermined numeric code through the touchpad or keypad. This entered code is then transmitted to the lock’s internal electronic control system, which meticulously authenticates it against stored data. 

For the lock to release its bolt, a small current is required to power the electronic components responsible for the authentication process. Batteries or a wired power source typically provide this minimal current and ensure the functionality of the electronic system. 

Upon successful verification, the control system signals the lock mechanism to release the bolt, allowing the door to be opened. In case you enter an incorrect password multiple times, the keypad lock may employ a self-protection feature that automatically relocks the door for a specified period, typically ranging from 10 to 15 minutes. This action is useful to deter unauthorized access!

Types of Keypad Door Locks

Push-to-exit buttons or snap switches are often used as door locks, but they aren’t as efficient as keypad door locks. 

Here are some top types of keypad door locks you should know:

Mechanical Keypad Door Locks

Mechanical Keypad Door Locks

Mechanical keypad locks operate without electronic components, relying on manual input of a numeric code for entry. They are a straightforward and reliable method for securing spaces and have no ongoing running costs after installation.

The simplicity of their design and cost-effectiveness make them a practical choice for those seeking basic yet effective keyless entry options. However, mechanical keypad door locks have certain limitations regarding functionality, features, and durability.

Electric Keypad Door Locks

Electronic keypad locks enhance security by integrating electronic components into the traditional mechanical lock framework. Users input a numeric code, initiating an electronic authentication process. While these locks provide keyless convenience, they may require a power source, commonly supplied by batteries or a wired connection.

This fusion of mechanical and electronic elements offers an elevated level of security and flexibility, appealing to those who value a mix of traditional and modern features in their access control systems. One downside of an electric keypad door lock is that, unlike a mechanical one, it doesn’t function when power is out and remains locked.

Electric Keypad Door Locks

Digital Keypad Door Locks

Digital Keypad Door Locks

Digital keypad locks represent a significant leap forward in keyless entry technology. These locks rely on electronic components to authenticate numeric codes entered via a touchpad or keypad. The user’s input triggers an electronic verification process, providing a secure means of access.

Unlike mechanical locks, digital keypad locks often require a small current to power their electronic components. This is supplied by batteries or a wired connection. The notable feature of digital locks is their ability to incorporate advanced functionalities – customizable access codes and, in some cases, integration with smart home systems.

How to Install a Keypad Door Lock?

Here’s the step-by-step guide on how you can install a keypad lock in your home or commercial building: 

Begin by gathering all necessary tools and ensuring the new keypad door lock is compatible with your door. Read the manufacturer’s instructions thoroughly before proceeding with the installation.

Using a screwdriver, unscrew the bolts inside the door and remove the deadbolt face. Take out the old deadbolt and lock cylinder, ensuring the dimensions align with the new lock. Verify the circular hole’s appropriateness in the door edge.

Utilize a screwdriver to fully extend the deadbolt plunger. Slide the new deadbolt into place, ensuring the “D”-shaped hole aligns at the center of the door hole. Confirm that the bolt face sits flush with the edge of the door for proper functionality.

Securely attach the mounting plate of the keypad lock on the inside of the door, aligning it with the touchpad on the outer surface. Place the lock assembly, including the battery pack, electric motor, controls, and data wire, onto the mounting plate.

Position the assembly cover and securely fasten it using the provided screws. This step ensures the protection and stability of the keypad lock components.

Before completing the installation, test the keypad lock to ensure all components are functioning correctly. Enter the code and confirm smooth locking and unlocking. If adjustments are needed, follow the manufacturer’s instructions to fine-tune the keypad lock for optimal performance. This step is crucial for guaranteeing the security and reliability of the newly installed keypad door lock.

Benefits of Using Keypad Door Locks

Here are some exciting benefits of using keypad locks:

Enhanced Security

Keypad door locks offer a heightened level of security by replacing traditional key mechanisms with personalized numeric codes. This keyless entry method eliminates the risk of lost or stolen keys, reducing vulnerabilities associated with unauthorized access. 

Furthermore, many keypad locks boast advanced security features. They allow you to set temporary access codes and integrated alarm systems, providing you with peace of mind and robust protection against potential security threats.

Changeable Codes

The flexibility of changeable codes is a significant benefit of keypad door locks. You can easily alter access codes, granting temporary or permanent access to different individuals without the need for physical key duplication. This feature proves invaluable in situations such as welcoming guests, accommodating service providers, or managing access for household members.

Easy Installation

One of the standout advantages of keypad door locks is their user-friendly installation process. Unlike complex traditional lock replacements, keypad locks often require minimal tools and expertise. Homeowners with basic DIY skills can successfully install these locks, saving both time and money. This straightforward installation contributes to the widespread adoption of keypad door locks.

16keys Touch metal piezo keypad switch Langir

Applications of a Keypad Door Lock

Let’s look at some of the common applications of a keypad lock:

Residential Use Keypad locks offer homeowners a secure and convenient way to control access to their residences. The ability to set personalized codes and manage access provides an added layer of protection.
Commercial Buildings Keypad locks are widely used in commercial buildings to regulate entry to offices, meeting rooms, or restricted areas.
Government Buildings Government facilities often utilize keypad door locks to control access to secure areas within the building. The ability to change codes enhances security protocols.
Retail Stores Keypad locks are applied in retail environments to control access to stock rooms or storage areas, safeguarding inventory and preventing unauthorized entry.

Best Keypad Door Lock Options 

Let’s discuss Piezo Keypads that serve as the best keypad locks: 

Langir’s Touch Metal Piezo Keypads 

Our Touch Metal Piezo Keypads are a pinnacle of reliability and durability designed for challenging environments. Crafted from a single piece of solid metal, these keypads are exceptionally rugged, making them ideal for applications where resilience is paramount. The IP68 certification ensures dust and water resistance, making them impervious to harsh conditions, including exposure to seawater and detergents. 

A standout feature is their maintenance-free design, as these keypads boast no moving parts. The rear potted switching unit adds an extra layer of protection, sealing against all forms of contamination and preventing freezing in extreme temperatures. The flexible design allows for either anodized printing or laser engraving for the layout, catering to diverse user preferences.

In terms of electrical specifications, the Touch Metal Piezo Keypads operate with a standard output in a matrix/common bus configuration. The contact arrangement is SPST N.O. (Single Pole, Single Throw Normally Open), providing reliable switching capabilities. For seamless integration into different systems, these keypads offer multiple electrical connection options, including flat cable or pins. 

Touch metal piezo keypad switch Langir

Key Features

  • Impact-Proof and Wash-Down Proof: IK10 impact resistance and IP68-IP69K wash-down proof up to 100 Bar for reliability in harsh conditions.
  • Wide Operating Temperature Range: Functions between -20°C to 85°C for adaptability in various environments.
  • Voltage and Current: Operates at 1 – 24V AC/DC, with options for 0.2A or 1A switching current.
  • Material Options: Available in aluminum or stainless steel for a sleek and durable finish.
  • IP68 Certification: Dust and water-resistant, including sea-water and detergent resistance.
  • Maintenance-Free Design: No moving parts for enhanced reliability.

Buying Guide for Choosing the Best Keypad Door Lock

Choosing the best keypad door lock for your residence or office requires careful consideration of various factors to ensure security, functionality, and compatibility. Here’s a guide to help you make an informed decision:

When selecting a keypad lock, prioritize advanced security features to fortify your home or office. Look for locks with anti-tamper alerts, encryption, and built-in alarms that provide an additional layer of protection. Consider models that offer temporary access codes for guests, granting flexibility and control over who enters your space.

The type of keypad lock you choose significantly influences the level of technology and functionality it offers. Decide between mechanical, electronic, or smart keypad locks based on your preferences and specific requirements.

Mechanical locks provide simplicity, while electronic locks introduce keyless entry. Smart locks, on the other hand, offer advanced features like remote access and integration with home automation systems. Assess your technological needs to determine the most suitable type for your home or office.

Consider the ease of installation when choosing a keypad door lock. Some locks are designed for straightforward DIY installation, making them accessible for users with basic skills.

Others may require professional assistance, so it’s crucial to assess your comfort level with the installation process. Ensure that the lock is compatible with your door’s specifications, including size and type, for a seamless integration.

Prioritize the durability of the keypad lock by selecting models constructed from robust materials such as metals, stainless steel, or reinforced alloys. This ensures longevity and resilience against wear and tear.

In addition, consider the weather resistance of the lock, especially if it will be exposed to outdoor elements. Opt for locks with weather-resistant features to maintain optimal performance in various conditions.

If you have a smart home system, consider the compatibility of the keypad lock with popular platforms such as Z-Wave or Zigbee. Ensure that the lock can integrate seamlessly with other security devices or home automation systems you may already have in place. Compatibility enhances the overall efficiency and interconnectedness of your home security setup.

Last but definitely the important point is to consider your budget! Your budget for the keypad lock should include not only the initial cost but also long-term maintenance expenses and potential subscription fees for smart locks. Understanding the overall cost helps you make a well-informed decision that aligns with your financial considerations.


What are the disadvantages of keypad locks?

There’s a risk of code exposure, as onlookers may observe or deduce your entry code. Hackers can also get into your smart home system to get the code of your keypad door. Not only this but if you have electronic keypad locks, they are vulnerable to power outages, requiring alternative access methods during such events.

How do keypad door locks get power?

Keypad door locks commonly obtain power through batteries or a wired connection. In battery-operated models, replaceable or rechargeable batteries supply the necessary electrical power for the lock’s electronic components. Some locks may also feature wired connections, drawing power directly from the building’s electrical system.

Why is my keypad door lock not working?

In case your keypad door lock is not working, several potential reasons could be affecting its functionality. First and foremost, depleted or improperly inserted batteries may be the culprit, so it’s essential to verify their condition and positioning. Also, check for loose or corroded connections in the battery compartment, as these issues can disrupt the power supply.


Keypad door locks offer a secure and convenient solution for modern access control, eliminating the need for traditional keys. Their diverse applications, ranging from residential to commercial settings, underscore their adaptability. While providing enhanced security features and ease of use, you should be mindful of potential issues such as code exposure and reliance on power sources.

In case you are searching for the best keypad lock for your home, Langir’s Touch Metal Piezo Keypads are the best. We have crafted it using high-quality materials, and it works with excellent efficiency. So, get in touch with us and grab your home security solution now!

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