News&Knowledge from SgQ
Digital Door Lock: A Modern Solution for Security and Convenience
Digital Door Locks use technology to replace traditional keys through 4 main systems: passwords, fingerprints, RFID cards, and applications. They are safer, more convenient, and come with features such as automatic locking, IP65 water resistance, and remote control. Suitable for homes, condos, and offices.
✍️ Written by: SGQ Team (SmartGlassQuality Khlong Sam)
📅 Last updated: April 17, 2025
- Why Is a Digital Lock Better Than a Traditional Lock?
- Superior Security with a Digital Door Lock
- Functions That Fit Modern Living
- Types of Digital Door Locks
- Digital Lock vs. Traditional Knob Lock
- Key Features of Smart Digital Door Locks
- ELH Digital Lock Recommendations — Which Brand Is Best?
- How Much Does a Digital Door Lock Cost?
- DIY or Hire a Professional Installer?
- Is a Digital Door Lock Worth It?
- Summary: Digital Door Locks
- Frequently Asked Questions (FAQ)
🔒 Looking for a quality digital door lock for your home or office?
SGQ Khlong Sam offers ELH digital door locks with installation by professional technicians.
📞 081-885-2629 |
💬 Line: @sgqklongsam
Why is a digital door lock a better choice than a traditional lock?
Digital door locks solve 3 main problems of traditional locks: lost keys, the risk of break-ins, and limited access control for only those who have a key.
No Need to Carry Keys What Can You Use Instead?
Digital door locks support multiple unlocking methods in one device, including passwords, fingerprints, RFID cards, and smartphone applications. You no longer need to carry keys or worry about losing them. Instead, you can use a password, fingerprint, RFID card, or even a smartphone application as a key replacement.
Reduce the Risk of Theft — How Does the Protection System Work?
Digital door locks have an instant alert system when tampering is detected, and some models lock automatically when the door is closed. Unlike traditional locks, which can be picked with common lock-picking tools.
Easier Access Control What Features Are Available?
You can set individual access permissions, schedule usage times, and record every entry and exit. This lets you know who entered your home and when — a feature that traditional locks cannot provide.
Enhanced safety with Digital Door Locks
Security is the main reason people choose digital door locks. Today’s technology can help protect against both physical tampering and digital password guessing.
How Does a PIN Code System Prevent Password Guessing?
The PIN Code system includes a function that prevents repeated password guessing by temporarily locking the system if the wrong code is entered more than the specified number of times. Some models also randomize the number positions before entering the actual code.
How Is Fingerprint Scanning Safer Than a Password?
A fingerprint is unique biometric data that cannot be easily duplicated. Unlike passwords, which may be guessed or seen from behind, fingerprint scanning is one of the safest unlocking methods available.
How Does App Unlocking Allow Remote Control?
Applications such as TTLock allow you to unlock, lock, change passwords, and view entry and exit history from anywhere via smartphone. This is ideal for homes with guests or service providers who need temporary access, allowing you to control entry and exit from anywhere through your smartphone.
Smart Features for the Modern Lifestyle
Digital door locks are not only “safer” but also “more convenient.” Every feature is designed to reduce steps and simplify daily life.
How Does the Automatic Locking System Help You Stop Worrying About Forgetting to Lock the Door?
The system works automatically when the door is closed. As soon as the door closes, the digital door lock locks by itself. There is no need to turn the door knob or check again, which is especially helpful when you are rushing out of the house or before going to bed.
How Many Unlocking Methods Can One Model Support?
Premium models such as ELH support up to 9 systems in one device, including passwords, fingerprints, RFID cards, backup keys, Bluetooth apps, WiFi, Apple Watch, NFC, and AirTag. Some models support passwords, fingerprints, RFID cards, and smartphone unlocking.
How Can Access Permissions Be Set for Homes and Offices?
You can set temporary passwords for housekeepers or repair technicians and assign specific entry and exit times for each person. Once the task is completed, you can immediately change the password through the app, such as limiting access times for housekeepers or office staff.
Digital Door Locks: Smart Locking Systems That Enhance Security for Homes and Buildings
A digital door lock is a door locking system that uses technology instead of a traditional key. It is available in various types based on usage, price, and the desired security level. It makes entering and exiting homes or buildings more convenient, reduces the risk of losing keys, and enhances safety for residents.
How Many Types of Digital Door Locks Are There, and What Are They?
Digital door locks today can be divided into 4 main types based on their primary unlocking systems. Each type is suitable for different use cases and budget levels.
1. PIN Code Digital Door Lock
-
A locking system that uses numeric codes as passwords to unlock the door.
-
Suitable for residential homes and offices.
-
Can store multiple passcodes, supporting multiple users.
-
Some models have anti-guessing features, such as random number input before entering the actual passcode.
2. RFID Card Digital Door Lock
-
Uses RFID cards or key cards to unlock the door.
-
Commonly used in hotels, condominiums, and office buildings.
-
Convenient for granting temporary access, such as to tenants or guests.
-
Supports integration with other locking systems, such as PIN codes or fingerprint scanners.
3. Fingerprint Digital Door Lock
-
A locking system that uses fingerprint scanning to unlock the door.
-
Offers high security, as fingerprints are unique to each individual.
-
Eliminates the hassle of remembering passcodes or carrying keys.
-
Ideal for homes with children or elderly who may forget passcodes.
4. Smartphone App Digital Door Lock
-
Control and unlock the door via a smartphone application.
-
Allows remote unlocking, ideal for smart homes.
-
Records user entry and exit logs, enhancing security.
-
Some models support voice control features, such as Google Assistant or Alexa.
Why Use a Digital Door Lock Instead of a Traditional Door Knob?
When compared directly, digital door locks outperform standard door knobs in almost every aspect, including security, convenience, and durability. The only factors to consider before deciding are the price and installation complexity.
How Is the Security Better Than a Standard Door Knob?
Traditional door knobs are at risk of being picked with lock-picking tools. Digital door locks come with automatic locking, tamper alerts, and multiple access methods that lock-picking tools cannot bypass. They also include advanced security features such as automatic locking, tamper alerts, and multiple access methods, including passwords, fingerprints, RFID cards, or applications instead of keys.
How Does It Eliminate the Problem of Forgetting Keys?
Problems such as lost keys, forgotten keys, or keys left inside are eliminated when using a digital door lock, because your fingerprint or password is always with you without needing to carry anything. You can also unlock the door remotely through an app on your smartphone.
How Is Access More Convenient Than Before?
Entering your home becomes much easier with just a fingerprint scan or password entry. There is no need to search for keys in your bag. It is ideal for homes with young children, elderly family members, or guests who need to enter without waiting for someone to open the door.
- Easy unlocking with just a fingerprint touch, password entry, or app control.
- You can set entry and exit permissions for family members or office staff.
- Suitable for homes with young children, elderly people, or guests who need to enter without using a key.
Durability: Can a Digital Door Lock Be Used Outdoors?
Models with an IP65 standard offer good water and dust resistance. They can withstand humidity and rain in Thailand’s weather conditions. Stainless steel and aluminum alloy materials provide strong rust protection, unlike standard door knobs that deteriorate quickly when exposed to water.
- They meet water and dust resistance standards, such as IP65, and can be installed outdoors.
- Made from high-quality materials such as stainless steel or aluminum alloy, which are resistant to corrosion.
- Some models support a wide temperature range and can be used both indoors and outdoors.
Comparison Table of Digital Door Locks and Standard Door Knobs
Key Features of Automatic Door Locks (Smart Digital Door Locks)
Automatic door locks, or Digital Door Locks, not only make locking your door easier, but also come with smart technology that helps make your home safer than ever. Let’s look at the key features that make digital door locks a better choice than standard door knobs. There are 3 main features that make them superior to traditional door knobs.
How Does the Auto Lock Function After Closing the Door Solve the Problem of Forgetting to Lock?
The Auto Lock system activates immediately when the door is closed. There is no need to use a key or turn the door knob again. This reduces the chance of accidentally leaving the door unlocked, making it safer, especially at night or when you need to leave home in a hurry.
-
When the door is closed, the digital door lock locks automatically without using a key or manually turning the door knob.
-
It reduces the chance of the door being unintentionally left unlocked.
-
It provides greater safety, especially at night or when you need to leave home urgently.
Backup Power System: Can It Still Open During a Power Outage or When the Battery Runs Out?
Digital door locks operate with long-lasting batteries. They include a low-battery warning system and can be powered temporarily through a Micro-USB port to unlock the door, even when the battery is completely drained.
-
Most digital door locks are powered by long-lasting batteries.
-
When the battery is low, the system provides an advance warning.
-
In an emergency, you can use a power bank through the USB port to temporarily power the system and unlock the door.
How Does Multi-User Setup Support Family Members and Offices?
It supports adding passwords, fingerprints, and RFID cards for multiple users. You can also set access levels for each person, such as entry and exit schedules or one-time passwords for technicians or temporary visitors.
-
You can add passwords, fingerprints, or RFID cards for multiple users.
-
Some models allow you to set access permission levels for each person, such as entry and exit time schedules.
-
Suitable for homes with multiple family members or offices that need a secure entry and exit system.
ELH Digital Door Locks: Safe, Easy to Use, and Suitable for Every Lifestyle
Today, there are many digital door lock brands available in the market. However, if you are looking for a high-quality lock that is easy to install, convenient to use, and complete with security features, SGQ recommends ELH digital door locks, one of the most popular brands.
Key Features of ELH Digital Door Locks
- Smart unlocking technology supports multiple unlocking methods, such as passwords, fingerprints, RFID cards, and mobile applications.
- Automatic locking system locks the door immediately after it is closed, reducing the risk of forgetting to lock it.
- Anti-tamper protection alerts you when there is an incorrect unlocking attempt or tampering.
- High-quality materials are durable for daily use, with some models offering water and dust resistance, suitable for both indoor and outdoor installation.
- Multi-user support allows multiple user codes to be set, making it suitable for both homes and offices.
Which Digital Door Lock Brand Is Good? Recommended ELH Digital Door Locks: Safe and Easy to Use
SGQ recommends ELH digital door locks, one of the most popular brands, with complete features, high-quality materials, and various models available for different use cases.
What Are the Main Specifications and Features of the ELH S1?
The ELH S1 is a fully equipped standard model with 100% water resistance and an IP65 rating. It comes with an anti-theft alarm and supports 6 unlocking methods, including Bluetooth and WiFi. It is suitable for general homes that require a high level of security.
- Waterproof – 100% water resistant
- Certified with IP65 standard and verified by lab testing.
- Equipped with an anti-theft alarm system.
- Multi-function access: Fingerprint + PIN Code + RFID Card + Key + Bluetooth App + (WiFi via Gateway) + Apple Watch
- Remote control features: monitor entry/exit, change passcodes, lock/unlock via TT Lock app.
- Supports both temporary and permanent passcodes.
- Includes MICRO-USB port for emergency charging.
- Equipped with a semiconductor sensor to prevent repeated false fingerprint scans.
- Compatible with wood, steel, aluminum, UPVC, swing doors, and sliding doors.
What Are the Benefits of the ELH L200 Double Lock?
The L200 enhances security with a double-lock system and supports 9 unlocking methods, including NFC and AirTag. It provides stronger protection against tampering compared to the S1 model.
- Two-Layer Lock
- 9 function systems: fingerprint scan + code + card + key + Bluetooth application + (Wifi add Gateway) + Apple watch + NFC Tag + Airtag
- Equipped with an anti-theft alarm and tamper detection system.
- Supports both temporary and permanent passcodes.
- Remote control features: monitor entry/exit, change passcodes, lock/unlock via TT Lock app.
- Includes MICRO-USB port for emergency charging.
- Equipped with a semiconductor sensor to prevent repeated false fingerprint scans.
- Compatible with wood, steel, aluminum, UPVC, swing doors, and sliding doors.
How Is the ELH A300, the Most Premium Model in the ELH Series, Different from Other Models?
The A300 uses premium-grade Aluminum Alloy, making it the strongest model in the series. It can scan fingerprints within 1 second, connects with Google Home and Alexa, and supports temporary passwords specifically for managing rental rooms and Airbnb properties.
- The most premium grade material, Aluminum Alloy, is strong, durable, and rust-proof.
- Waterproof lock with IP65 rating, certified by laboratory testing.
- Comes with 3 interchangeable faceplates in different shades.
- 9 function systems: fingerprint scan + code + card + key + Bluetooth application + (Wifi add Gateway) + Apple watch + NFC Tag + Airtag
- Fingerprint scan within 1 second with high processing accuracy.
- Customizable passcodes: one-time use or time-based codes — ideal for temporary access such as tenant visits or housekeeping. Easily reset after each use.
- Check access history and usage anytime, anywhere (Remote access requires additional Gateway).
- Can connect to Google Home and Alexa (add Gateway Wifi)
- Suitable for homes, condos, offices, apartments, rental rooms, Airbnb, hotels and other businesses.
→ View More Details About ELH Digital Door Locks | Digital Door Lock Buying Guide
🔒 Interested in ELH digital door locks? SGQ Khlong Sam is ready to provide consultation.
ELH S1 | L200 | A300 — Complete models for every use case
Available with installation, system setup, and complete usage testing.
How Much Does a Digital Door Lock Cost? Choose One That Fits Your Budget
Digital Door Locks are available in 3 price ranges based on features and usage needs. Prices start from 4,000 baht for basic systems and go up to 9,000+ baht for full Smart Home models. → 12 Questions Before Choosing a Front Door, Including Door Lock Systems
Entry Level (4,000 – 6,000 baht)
- Basic locking systems, such as password + RFID card
- Suitable for condos, rental rooms, and apartments
- Standard functions, automatic locking, and easy operation
Mid-Range Level (6,000 – 9,000 baht)
- Supports fingerprint + smartphone + password unlocking
- More secure functions, including a tamper alert system
- Suitable for homes and small offices
Premium Level (9,000 baht and above)
- Supports app control, remote control, and Smart Home connection
- Strong materials with water and dust resistance (IP65), suitable for outdoor installation
- Includes entry and exit history records and mobile notifications
Can You Install a Digital Door Lock Yourself, or Should You Hire a Professional Technician?
You can install it yourself if it is a model designed to replace a standard door knob without additional drilling. However, for models that require new door drilling or have more complex systems, it is recommended to hire a professional technician to ensure full performance.
DIY Installation vs. Hiring a Technician Which One Should You Choose?
If you have basic handyman skills and all the necessary tools, you can install it yourself. However, if the installation requires new door drilling, Smart Home connection, or you are not confident, hiring a professional technician is recommended. Installation errors may cause the system to not work at full efficiency from the start.
Can You Install It Yourself?
If you have basic handyman skills and the necessary tools, such as a drill, screwdriver, and measuring tools, you can install it yourself. This is especially true for easy-installation models, such as models designed to replace standard door knobs without additional door drilling.
But When Should You Hire a Technician?
- If the door needs new drilling or modification
- If the model has a complex system, such as Wi-Fi or Smart Home connection
- If you want a secure installation and confidence that it works 100% properly
Recommendation: If you are not confident, hire a professional technician to prevent installation errors.
Digital Door Lock with Installation: More Convenient and Time-Saving
For greater convenience, choosing a Digital Door Lock with installation service is the best option.
Benefits of Installation Service
- No need to spend time studying how to install it yourself
- Installed by professional technicians, ensuring full performance
- System setup and usage testing are completed properly
Is a Digital Door Lock Worth It?
A Digital Door Lock is worth it for those who value security and convenience, as it can help reduce long-term costs from key replacement, door knob replacement, and the risk of tampering or break-ins.
Choose one that suits your actual usage. For homes, choose a model that supports fingerprints and passwords. For offices, you may need functions that record entry and exit history. Choose a quality brand. Digital door locks from trusted brands such as ELH come with complete functions, strong materials, and a warranty.
Therefore, a Digital Door Lock is a worthwhile investment because it helps make your home safer, reduces the problem of forgotten keys, and offers smart features that make daily life easier. SGQ Khlong Sam offers ELH digital door locks with installation by professional technicians. Contact us for more information.
📖 Related Articles
Complete 2026 Digital Door Lock Guide: How to Choose One That Is Worth the Investment
Continue from this article and view in-depth details before deciding to buy a digital door lock.
12 Popular Questions Before Choosing a Front Door, Including Locking Systems
Covers questions about door locks and security from a homeowner’s perspective.
Digital Door Lock Summary: Everything You Need to Know Before Deciding
- 4 main types — PIN Code / Fingerprint / RFID Card / Application
- Safer — Tamper alert system + automatic locking + remote control
- ELH is the recommended brand — S1 (Standard) / L200 (Double Lock) / A300 (Premium)
- Price ranges from 4,000–9,000+ baht, depending on the features. Choose based on actual usage needs.
- Hiring a professional technician for installation is recommended to ensure full performance and proper usage.
- SGQ Khlong Sam — offers the full range of ELH models with installation by professional technicians.
Frequently Asked Questions: Digital Door Locks
1. Can ELH Digital Door Locks Be Installed on Aluminum Doors?
Yes, they can. All ELH digital door lock models support installation on various door materials, including wood, steel, aluminum, and uPVC, for both swing doors and sliding doors. It is recommended to inform the SGQ technician what type of aluminum door you have so they can choose the right accessories and installation method.
2. What Should You Do If the Digital Door Lock Battery Runs Out Late at Night?
ELH digital door locks have a low-battery warning system in advance. They also include a Micro-USB port for emergency charging with a power bank, allowing the system to be powered temporarily and unlocked immediately without removing the door. In addition, every model comes with a mechanical backup key as an extra layer of backup.
3. What Should You Do If You Forget the Digital Door Lock Password?
If you forget the password, you can immediately use other backup methods, such as fingerprint scanning, an RFID card, or unlocking through the TTLock app. To reset all passwords, follow the Master Reset steps specified in the manual or contact an SGQ technician for assistance.
4. Can a Digital Door Lock Be Installed on an Existing Door, or Is Additional Drilling Required?
It depends on the model and the size of the existing door. Models designed to replace standard door knobs can usually be installed without additional drilling. However, if the existing cutout size does not match, minor adjustments may be required. It is recommended to have an SGQ technician inspect the site first to choose the most suitable model.
5. What Is the Difference Between a Digital Door Lock and a Multi-Point Lock, and Which One Should You Choose?
A digital door lock focuses on smart unlocking systems, keyless access, and full smart features. A multi-point lock focuses on physical strength by securing the door at multiple points at the same time. Some models, such as the ELH L200, combine both systems with a double-lock mechanism and complete digital functions. It is suitable for homes that need both high security and convenience.
About the Author
This article was written by the SGQ Khlong Sam team, a distributor and installer of ELH digital door locks, providing expert advice on smart door locking systems for homes, condos, offices, apartments, and Airbnb properties in Pathum Thani and nearby areas across many projects.
🔒 Complete Range of ELH Digital Door Locks with Installation at SGQ Khlong Sam
ELH S1 | L200 | A300 — Complete options for every use case
Installed by professional technicians, with system setup and full testing completed before handover.
📍 19/60-61 Moo 7, Khlong Sam, Pathum Thani | Open Monday–Saturday, 08:00–17:30
For Aluminium Contractors & Installers
If you need aluminium profiles, quality glass, premium hardware, custom cutting & fabrication, installation tools, or on-site technical advice,
you can contact us at:
• Line : https://lin.ee/Wkn1Ong
• Tel : 081-885-2629
• Facebook : Smartglassquality
For Homeowners & Project Owners
If you are looking for aluminium door–window installation, glass works, sliding and swing systems, room partitions, or high-quality materials for home renovation
you can contact us at:
• Line : https://lin.ee/Wkn1Ong
• Tel : 099-392-1963 , 097-936-1449
