A biometric door lock has long been used to protect against unwanted entry. Previously, such systems were installed in the offices of large companies, but now anyone can buy this device for installation on the doors of their homes.
This technology allows you to open the door not with the key, which is traditionally inserted into the door lock
, and with the help of your fingerprint, which is scanned and recognized by the system. This allows a person to live a comfortable and safe life.
Such a door lock has both advantages and disadvantages, which can be seen in the table below.
| Advantages | disadvantages |
| No duplicates, nor the need for them. Each person’s fingerprints are unique, which means you don’t have to worry about breaking the lock. | An insufficiently wide circle of the public is aware of this technology, therefore, the majority has a distrust of such systems. Many people are afraid that the door lock will not recognize them and will not let them in. However, in case of such circumstances, the manufacturer provides a panel for entering a PIN code, as well as a traditional key. |
| There is no need to carry keychains, which are sometimes not only voluminous, but also quite heavy. | The lock is powered by finger batteries. It also becomes a subject of gossip "what happens if the battery runs out?" In this case, the manufacturer also provided a fallback: the system is connected to the power system, which acts as a backup power source. On some models, in addition, an external power source is provided. |
| There will be no unforeseen expenses if the door is slammed shut. | Efficiency decreases when triggered at low temperatures. And if the thermometer column drops below 20 degrees, then the door lock will generally stop working. |
| Internal memory allows you to enter into the database and "remember" all who have access. For example, bank employees, office workers, your household. There are practically no restrictions on the quantity. | High price. Due to the lack of extensive mass production, the cost of one castle remains quite high. |
Practicality and convenience. A door lock of this design contributes to the development of technological progress. | |
| The ability to enter multiple fingerprints for one person in case significant changes occur on the main fingerprint (deep cut, for example). | |
| Protection against vandalism and weather conditions. | |
Installing a door lock of this type is quite simple, but it is imperative to provide protection against possible vandalism. The principle of operation of this locking device is quite simple and intuitive. The finger of the person who wants to enter must be placed on a special panel with a reader. An electronic mechanism will compare your prints with existing ones and make a decision. The whole comparison process takes a split second. It is a fast and efficient device designed for a comfortable life for people.