How to Choose Suitable Fingerprint Door Locks for Home? 

With the continuous improvement of technology, smart homes have begun to change people's living habits subtly, and smart locks, exceptionally fingerprint smart locks, are gradually accepted by more families because of their irreplaceable and difficult-to-copy characteristics.

resize,m fill,w 1290,h 712# - How to Choose Suitable Fingerprint Door LockS for Home? 

For example, when a thief uses a fake fingerprint to open the door and wants the break-in, the fingerprint door lock can automatically activate the anti-theft alarm function to notify the owner or community security.

But how to choose a suitable fingerprint door lock for your home?

In this article, you will have a detailed understanding of fingerprint door locks, including the type, structure, material, function, market, and installation of fingerprint door locks.
Then you will have a very clear understanding of the fingerprint lock, so you know how to choose a suitable fingerprint lock for your home.

The table of content:

What Is a Fingerprint Door Lock?

The fingerprint door lock is the use of human biometric fingerprints for identity security identification and authentication. With high-tech digital image processing, biometrics, and DSP algorithms, it has become a new generation of access control systems that meet modern security requirements.

The fingerprint door lock has been widely used for home, government agencies, banks, high-end apartments, and other places that require security and privacy.

What Are The Types of Fingerprint Door Lock

Early smart door locks mainly realized intelligence in unlocking methods, such as password fingerprint door locks, pure password locks, swipe card locks, etc. Then, with the development of network connection technology and technology, networked smart door locks and Face recognition door lock, and so on.

Of course, most fingerprint door locks have more than one unlocking method. At present, the more common fingerprint smart locks on the market are password + biometrics (face recognition, fingerprint recognition, etc.)

Fingerprint door lock types by place of use: fingerprint door lock for home. Fingerprint locks for cabinets/cupboard, fingerprint lock for house, fingerprint lock for gate, biometric door locks for business.

resize,m fill,w 1296,h 736# - How to Choose Suitable Fingerprint Door LockS for Home? 

The mobile system's fingerprint door lock types are fingerprint app lock for iPhone, fingerprint lock for android.

The Structure of The Fingerprint Door Lock

Most of the fingerprint smart door locks seen use the handle structure, which is the standard door lock with a handle. This door lock is roughly composed of three parts: the lock mortise part, the handle part, and the lock panel.

Under normal circumstances, the fingerprint smart door lock mortise part is similar to the traditional door lock, and the conventional mechanical lock body is still used.

Besides, for the fingerprint handle part, most smart door lock products are not more customized. For door locks with multiple unlocking methods, the fingerprint recognition module is often placed in the handle part, which is more suitable for users to open the door—the habit of using fingerprints to unlock.

The panel part is the part with high technical content of the entire fingerprint door lock. Most electronic components are concentrated in this part, including password panels, camera modules, batteries, etc., which are used to provide other functions required by smart door locks.

resize,m fill,w 1310,h 818# - How to Choose Suitable Fingerprint Door LockS for Home? 

Now let us know more in detail the various components of the fingerprint door lock

Fingerprint door lock components include:

Externally visible

  • Front and rear panels
  • Sliding
  • handle
  • Fingerprint head
  • keyboard
  • Display
  • camera
  • Emergency power outlet
  • Keyhole
  • Anti-lock knob
  • Battery bay
  • Lock body

Invisible inside

  • Circuit Board
  • Cylinder
  • chip

1. Front and rear panels

The fingerprint smart lock panel comprises three primary materials: zinc alloy materials, stainless steel materials, and aluminum alloy materials. The panel made of zinc alloy has good corrosion resistance and high hardness and is the first choice for fingerprint smart lock panels of major manufacturers.

2. Slide cover

The fingerprint smart lock with a sliding cover can effectively protect the fingerprint recognition module of the fingerprint lock and make the fingerprint recognition module a longer service life.

However, many fingerprint door locks for homes are not designed with a sliding cover because fingerprint locks without a sliding cover are more convenient to unlock.

resize,m fill,w 1016,h 1016# - How to Choose Suitable Fingerprint Door LockS for Home? 

Fingerprint smart lock with a sliding cover

The fingerprint front door lock does not have a sliding cover; as long as the fingerprint recognition module is adequately protected, it can be used for a long time. It is not necessary to choose a fingerprint lock with a sliding cover.

3. Handle

According to the handle's shape, fingerprint smart locks can be divided into push-pull and push-down types. The push-down type has a horizontal handle, and the door needs to be pressed down to open the door, while the push-pull type is to open the door by pushing the handle.

Fingerprint home lock can also be divided into semi-automatic fingerprint home lock and fully automatic fingerprint home lock. Semi-automatic generally means that you need to press down or push the handle to open the bolt after fingerprint recognition is passed.

resize,m fill,w 1234,h 772# - How to Choose Suitable Fingerprint Door LockS for Home? 

A fully automated fingerprint home lock means that the motor automatically pulls the bolt open after the fingerprint recognition is given.

After unlocking, push the door to enter. Semi-automatic fingerprint locks need to be lifted to lock the door, and fully automatic fingerprint locks are automatically locked, so full-automatic locks require more electricity.

4. Fingerprint sensor

Fingerprint sensor locks mainly have two mainstream identification modules: optical fingerprint sensor and semiconductor fingerprint sensor.

The semiconductor fingerprint sensor has a much higher recognition accuracy than the optical fingerprint sensor, and the rejection rate is low. Now mainstream brands of fingerprint sensors all use semiconductor methods.

resize,m fill,w 1354,h 754# - How to Choose Suitable Fingerprint Door LockS for Home? 

Among the semiconductor fingerprint identification modules, the Swedish semiconductor fingerprint identification module is easier to use.

5. Keyboard

In addition to fingerprint identification and unlocking methods, fingerprint sensor locks generally support password input mode. A better Fingerprint sensor lock will have a virtual password function.

Generally, a right Fingerprint sensor lock keyboard will use a fingerprint-free panel to prevent others from cracking the long-term password. For safety, it is recommended to change the long-term password of the fingerprint lock at regular intervals.

6. Display

The screen of the fingerprint smart door lock is mainly used to display the keyboard and system prompts. A better fingerprint smart door lock will use a display that does not leave fingerprints. The fingerprint can be erased with one wipe, which can effectively prevent password leakage.

7. Camera

The security of fingerprint locks of influential brands is already high enough, and friends with a low budget do not need to choose a fingerprint door lock with camera. The fingerprint door lock with camera function is the icing on the cake.

fingerprint door lock with camera - How to Choose Suitable Fingerprint Door LockS for Home? 

8. Emergency power port

Since dry batteries or lithium batteries power the current fingerprint locks, the battery will inevitably run out, and the fingerprint recognition system will malfunction.

Therefore, the fingerprint lock is designed with an emergency power port. When the internal power supply is out of power, the emergency power supply can restart the system. The emergency power port is generally designed to be more concealed, usually hidden at the bottom of the lock.

resize,m fill,w 1424,h 766# - How to Choose Suitable Fingerprint Door LockS for Home? 

9. Keyhole

Since the fingerprint identification system cannot always guarantee no problem, the fingerprint gate lock will also retain the emergency mechanical key opening method when designing. The fingerprint gate lock will have a keyhole. The keyholes of fingerprint gate locks are generally intended to be more concealed.

10. Emergency mechanical key

The emergency mechanical key is used to open the fingerprint key lock when the fingerprint recognition fails. Each fingerprint key lock will be equipped with more than two keys.

11. Emergency knob

The emergency button is used when the motor fails to open the door, and the door can also be opened with the emergency knob.

Emergency knob - How to Choose Suitable Fingerprint Door LockS for Home? 

12. Anti-lock knob

The anti-lock knob is designed to retain the traditional lock's anti-lock function, and basically, every fingerprint home lock will have it. It is safer to lock after entering the door. Some automatic fingerprint locks will automatically lock after entering the door, which is very convenient.

13. One-key unlock and close buttons

The user can open and lock the door by pressing a key to open and close the lock, a very convenient fingerprint lock function.

14. Battery slot

Generally, the fingerprint home lock's power source includes a dry battery and lithium battery. The lithium battery is better because the lithium battery can be recharged after being discharged, which is more convenient.

resize,m fill,w 1134,h 734# - How to Choose Suitable Fingerprint Door LockS for Home? 

15. Lock mortise

The lock mortise is an essential part of the fingerprint lock. When buying the lock mortise, you need to choose the size of the opening where the door is placed. If the lock body is not selected, it may directly affect the life of the lock.

resize,m fill,w 1162,h 732# - How to Choose Suitable Fingerprint Door LockS for Home? 

The lock mortise's material is mainly stainless steel, but there are also zinc alloy and iron, preferably 304 stainless steel.

16. Circuit board

A small black box can be used to check the quality of the electronic fingerprint door lock.

The internal circuit design of the fingerprint security door lock is also very particular. Generally, the internal circuit of the fingerprint security door lock of the big brand will have an overload protection design, which can effectively prevent the small black box's attack.

The small black box can unlock those fingerprint security door locks of low quality because it can instantly generate a strong electromagnetic field, overloading the internal circuit and causing the system to restart and open. So be sure to choose a fingerprint lock that can resist the small black box's electromagnetic interference.

resize,m fill,w 1056,h 650# - How to Choose Suitable Fingerprint Door LockS for Home? 

17. Lock cylinder

The lock core is divided into A, B, and C levels, and the safety and difficulty of prying open will increase sequentially. Nowadays, many brands of fingerprint locks use C-level lock cylinders.

resize,m fill,w 1252,h 724# - How to Choose Suitable Fingerprint Door LockS for Home? 

19. Chip

The chip in the fingerprint house lock is similar to the CPU of a mobile phone or computer. A suitable fingerprint recognition module needs to be equipped with a good fingerprint recognition processor to take advantage of its advantages.

The internal chips of the fingerprint house locks of significant manufacturers are self-developed or foreign specialized. The processing chip has strong performance and high security.

20. Motor

The motor is the device that drives the bolt and the hook. Now the fingerprint house locks of big brands are safe enough. It is not recommended to install the theme because it will increase the motor's burden and reduce its service life and battery life.

fingerprint house locks motor - How to Choose Suitable Fingerprint Door LockS for Home? 

Fingerprint Door Lock Functions

Generally speaking, the current fingerprint door lock has the following three essential functions. (A smart door lock with these three functions can be called a fingerprint door lock smart lock).

  1. Anti-false cover alarm
  2. It does not support a non-encrypted RFID card to open the door.
  3. Anti-insertion design of the oblique lock tongue

What are the main functions of the fingerprint lock?

As mentioned above, there are three primary functions of the fingerprint door lock. Does the fingerprint door lock have any other functions?

1. Automatic anti-lock function: With automatic anti-lock, you will not be afraid that the door is hidden or a hard card cuts the anti-insertion design. Now, this feature of fingerprint lock is regarded as a primary function.

resize,m fill,w 1212,h 850# - How to Choose Suitable Fingerprint Door LockS for Home? 

2. Anti-riot demolition function: here is the anti-violent demolition lock, the lock is designed to be very safe, and there are various biometric functions.

3. Anti-pry alarm function: This function is also equivalent to anti-violent unlocking. There is a professional anti-sensor detection surface, and an alarm will be issued when the lock is detected.

4. Internal mechanical reverse lock: After the internal mechanical reverse lock, the door can only be removed, but there are also disadvantages. If children touch this function by mistake, it will cause harmful consequences.

5. Semiconductor fingerprint recognition: Optical fingerprint recognition can not identify living bodies, and a re-engraved fingerprint can easily open the door lock. However, most fingerprint locks on the market now use semiconductor fingerprint recognition.

Fingerprint Lock Material

1. Zinc alloy material: The most widely used material for smart locks on the market is zinc alloy, which has the advantages of hardness and strong corrosion resistance. It also has the advantages of easy processing and molding. So it is the most familiar material for smart locks.

resize,m fill,w 1232,h 762# - How to Choose Suitable Fingerprint Door LockS for Home? 

2. Stainless steel material: The stainless steel material is useful in hardness and durability, preventing the smart lock from being violently removed to a large extent.

3. Reinforced plastic material: This material is relatively rare in the current smart lock market, and cheap goods are easy to remove.

4. Aluminum alloy material: The quality in all aspects is fair, but the usage is not high, and few merchants are making this material.

5. Copper material: Copper has very high hardness and durability. The lock styles made are very particular, and there is a texture at first glance. There are not many brass cases in the market, and the price is relatively high.

Fingerprint Smart Lock Market

Who will buy fingerprint locks?

According to relevant statistics, the current fingerprint smart door lock sales channel is still dominated by business clients. Most of the fingerprint smart door locks produced by manufacturers are directly sold to real estate developers, door factories, security integrators, etc. This channel's advantage is that users do not need to worry about installing and other issues.

In terms of retail channels, similar to traditional products, the fingerprint smart lock market is also divided into online and offline channels.

The fingerprint lock online channels you can buy include Amazon, eBay, and AliExpress Etc.

At present, the market share of smart fingerprint lock is still low. The main reason seems to be that users lack trust in such fingerprint door locks. Most e-commerce channels have incomplete sales supporting services, such as door-to-door fingerprint door lock installation service, after-sales maintenance, etc. The problem that it causes users to want to buy fingerprint locks but dare not buy.

According to relevant data, male buyers occupy the mainstream position among the current users who buy fingerprint locks, and the age is mainly concentrated in users aged 25-50. Among them, users aged 27-40 are the main purchasing power.

How Does Fingerprint Lock Work?

The fingerprint door lock operates by scanning the fingerprint data and converting it into a digital template.

After putting your finger on the fingerprint scanner lock for the first time, it will be converted into digital data, and the fingerprint template will be saved. This process is repeated every time you want to grant someone access.

resize,m fill,w 1300,h 712# - How to Choose Suitable Fingerprint Door LockS for Home? 

The next time someone puts his/her finger on the fingerprint sensor lock, it will match the data obtained through the finger with the pre-saved value. If a match is found, access will be granted, and the door will be opened.

When matching, the stored fingerprint template is compared with the received input. A green LED signal is usually issued if there is a match, and the door is opened. The process is speedy and takes less than a second to complete.

Is Fingerprint Door Lock Safe?

Of course, the fingerprint door lock is an evolution of the mechanical lock. Not only is it safe, but it has also upgraded its security. Not only does it prevent technology from being turned on, but it also uses violent means.

resize,m fill,w 1294,h 830# - How to Choose Suitable Fingerprint Door LockS for Home? 

Fingerprint smart door locks will also take the initiative to call the police, send messages to scare away the caring people, and take pictures of the caring people and send them to us. Isn't this lock safer?  At the same time, the fingerprint lock has the following advantages:

1. Security.

Standard mechanical lock keys can be copied, and the owner is not assured after others use them. The fingerprint is unique. There are no two fingerprints that are the same in the world.

2. Convenience.

There is no need to carry the key with you, and it is a key that will never be lost. A person’s fingerprint remains the same for life, and one fingerprint can be used for life. And one person can input fingerprints of different fingers. Touch to open, reverse lift to lock.

Compared with traditional door locks, in the era of fingerprint sensor locks, the trouble of forgetting to bring the key will not exist for users. As long as you unlock the door lock through your body's physical characteristics, the convenience brought by such a user experience is naturally self-evident.

resize,m fill,w 1232,h 834# - How to Choose Suitable Fingerprint Door LockS for Home? 

Especially for the elderly at home, biometric identification is far more reliable than memorizing the key and memorizing the password.

3. Scalability.

It can hold 199 fingerprints and register and input fingerprints, delete fingerprints at will and be very convenient for fingerprint management. Compared with ordinary mechanical locks, it saves the trouble of preparing and recovering keys. It is especially suitable for office rooms and rental rooms.

5. Long-term maintenance life.

Ordinary mechanical locks have a short service life and are prone to failures during use, and have to break in while the fingerprint door lock functions correctly.

6. High recognition rate.

The false rejection rate of fingerprint door lock is less than 1%, the false recognition rate is less than one in a million, and fingerprints can be accurately compared within any angle of 360°.

7. Fashionability.

Fingerprint password technology is the direction of the development of locks. The use of fingerprint password door locks represents fashion, nobleness, and cutting-edge. The appearance design is fashionable and generous.

8. Scenario extension

Based on the convenient user experience, the popularization of fingerprint door locks can even realize remote unlocking. Assuming that when you are not at home, your parents and children cannot enter the door when you arrive at home.

After checking the situation, you can open the fingerprint door lock remotely through the network, convenient.

Besides, users do not need to worry about children opening the door to strangers at will because you can know the situation near the door at any time from the remote end and remotely control the locking of the door lock.

resize,m fill,w 1190,h 738# - How to Choose Suitable Fingerprint Door LockS for Home? 

9. Timely stop loss for unexpected situations

Of course, like a door lock, even a traditional door lock cannot guarantee 100% security. If the door is hacked or opened violently, the user can receive notifications through the fingerprint door lock's network connection function and call the police in time. Rescue the loss in a short time, which is unmatched by traditional door locks

Disadvantages of Fingerprint Door Locks:

1. Reliability of technology

Smart fingerprint door locks use many high-tech technologies in unlocking methods, such as face recognition technology, fingerprint recognition technology, iris recognition technology, and more basic password unlocking technology. The reliability of these technologies is naturally the first concern for users.

2. Cybersecurity

Network security is naturally one of the issues that users are paying more and more attention to. How to ensure that hackers do not easily crack networked hack is also a significant issue that the industry needs to face.

3. Imaging problems

Some people or specific groups of fingerprints have few features and are difficult to image. Every time a fingerprint is used, the fingerprint print will be left on the fingerprint sensor, and these fingerprint traces may be used to copy fingerprints.

4. Fingerprint  door lock price issues

In the traditional lock industry, the cost of changing locks is not high. The current price of fingerprint door locks is much higher than conventional door locks. How to balance pricing so that users can recognize the value of the price is also one of the industry's problems.

The fingerprint door lock is in the initial stage of development, and the price of the fingerprint lock is still relatively high. With the continuous development of the technology level, it is believed that the fingerprint door lock manufacturing cost of the fingerprint lock will drop in the future.

5. Other unstable factors

  • Some people or groups of fingerprints have few fingerprint features and are difficult to image.
  • Every time a fingerprint is used, the fingerprint print will be left on the fingerprint collector, and these fingerprint traces may be used to copy fingerprints.
  • The stability and durability of a code lock are not as strong as a mechanical code.

How Do Fingerprint Smart Locks Get Power?

Usually, fingerprint door locks are powered by batteries. The alkaline battery is divided into alkaline batteries, carbon batteries, and lithium batteries.

1, Alkaline batteries or carbon batteries?

First of all, fingerprint door locks belong to electronic products with relatively large current (semi-automatic unlocking current is 300mA, fully automatic lock unlocking current is more significant), carbon batteries are not suitable, one is too small, and the other is carbon batteries principle of its process determines that it is straightforward to leak, and alkaline batteries are relatively a right choice;

However, alkaline batteries' choice cannot altogether avoid battery leakage because battery leakage is a very complicated mechanism, which is inseparable from the quality of the battery process, the method of use, and the selection.

resize,m fill,w 1172,h 758# - How to Choose Suitable Fingerprint Door LockS for Home? 

2. How many alkaline dry batteries are used?

1) To increase the use time and reduce the frequency of users changing batteries, some alkaline products adopt eight dry batteries;

2) The circuit principle of 8 dry batteries is equivalent to a group of 4. A total of 2 groups of batteries are connected in parallel, and a single group of 4 batteries is connected in series. Usually, one group is powered, and the other is standby (in theory);

3) The actual application is that the two sets of batteries can't have the same parameters, so there will be an imbalance in the power supply of the two sets of batteries, which may lead to accelerated battery aging, and even other unpredictable results (such as battery heating, over-discharge, leakage, etc.)

4) Therefore, the fingerprint door lock installer's advice is good, install four batteries, pay attention to the powerful reminder of the smart lock itself, once it enters the low battery alarm, replace the battery in time to avoid over-discharge and leakage.

Suggestions for using fingerprint door lock dry battery:

1. According to the requirements of different application scenarios, select the appropriate dry battery.

2. Carbon dry batteries are close to being eliminated in the market (old technology, low capacity, and easy to leak). They can be used in clocks, remote controls, and other products. The advantage is that they are cheap and light.

Alkaline dry batteries are the mainstream dry batteries in the market. They can be seen everywhere in life and can be used in general applications.

3. Lithium-iron dry battery is a relatively new technology and has a small market share. It is characterized by large capacity, no leakage, and lightweight, but the price is much higher. Some high-end products (smart door locks, keyboard, and mouse, etc.)

resize,m fill,w 1176,h 702# - How to Choose Suitable Fingerprint Door LockS for Home? 

It is recommended to choose lithium iron dry batteries to avoid electrical corrosion caused by leakage.

4. It is forbidden to mix batteries of different brands and different levels of old and new. The Mixed-use of 100% batteries will shorten battery life or even leak.

5. Follow the product power consumption recommendations and replace the battery in time. Avoid leakage caused by over-discharge.

Fingerprint Door Lock Installation

The fingerprint door lock is the latest security product that allows you to swipe your fingerprint to enter your home or office within a second. The built-in fingerprint sensor records and stores thermal patterns on fingerprints or fingerprints, thereby denying access to fingerprints that do not match.

Fingerprint front door locks are available in kits, which are very easy for any homeowner to install. Please follow the steps below to install this fingerprint door lock:

Step 1: Purchase a fingerprint scanner door lock kit.

Purchase a fingerprint scanner door lock kit from a local store or online. There are many types of fingerprint locks available, from simple locks to locks with built-in alarm systems. Choose the parts that suit your needs and check all the parts in the kit to ensure that no parts are missing.

resize,m fill,w 1294,h 726# - How to Choose Suitable Fingerprint Door LockS for Home? 

Step 2: Remove the old fingerprint door lock

Before deleting the old lock, check the new fingerprint home lock and ensure you have everything you need for the fingerprint door lock project. You need to remove the two screws on the lock body and the two screws on the latch to remove it.

resize,m fill,w 1194,h 672# - How to Choose Suitable Fingerprint Door LockS for Home? 

Step 3: Drill holes in the door

Drill a hole about 2 inches deep on the side of the door to secure the latch. Blow on this hole to remove all small wood chips, and then drill another hole of the same size in the door frame to lock the bolt.

resize,m fill,w 1220,h 686# - How to Choose Suitable Fingerprint Door LockS for Home? 

Step 4: Adjust and install the bolt and latch

Ensure that the locking tongue fits the locking mechanism, insert a screwdriver into the hole on the driver board, and then rotate it until it is fully secured. When the door is locked, the bolt can be extended to form a tight seal, and when unlocked, the bolt can be retracted to make it easy to open.

The bolt and latch must be installed on the edge of the door. Hammer the metal plate into the hole in the door frame to install the latch. Insert the screw into the hole of the bolt and tighten it toward the door.

resize,m fill,w 1272,h 716# - How to Choose Suitable Fingerprint Door LockS for Home? 

Step 4: Install the lock.

Install the fingerprint verification screen on the outside of the door, and fix it in place while fixing the rear panel to the inside. Use screws to pull the two parts together tightly.

Some kits include rain covers, such as rain cover and gasket. You can install it on the LCD screen and lock it to protect it from bad weather, especially since it will be placed outdoors.

resize,m fill,w 1252,h 704# - How to Choose Suitable Fingerprint Door LockS for Home? 

Before installing the mounting plate, make sure to pass the data cable through the mounting plate. Then, it can be fixed in the slot cut out on the mounting plate.

Step 5: Final inspection

Once the biometric fingerprint lock is installed, check to make sure the door forms a tight seal when closed. If not, repair it. Read through the instructions again and visually check to make sure everything fits before inserting the battery.

resize,m fill,w 1162,h 654# - How to Choose Suitable Fingerprint Door LockS for Home? 

Step 6: Register fingerprints

The required type installs the battery on the biometric fingerprint lock and follows the model's instructions to record the fingerprint as the administrator fingerprint or the master fingerprint.

resize,m fill,w 1184,h 666# - How to Choose Suitable Fingerprint Door LockS for Home? 

Most fingerprint door locks can store multiple fingerprints simultaneously, so please add more administrators, such as family members or occupants of the house or office where it is installed.

Other Recommended Popular Articles

Fingerprint Door Lock Price 1 - How to Choose Suitable Fingerprint Door LockS for Home? 
What Is a Fingerprint Door Lock 1 - How to Choose Suitable Fingerprint Door LockS for Home? 
Top 20 Question to Ask Before Buying Smart Door Locks - How to Choose Suitable Fingerprint Door LockS for Home?