The production date of Samsung ezonshs-dl50 has no uniform fixed term, because different individuals have different production times and have been producing continuously, so its production date has been updated, and the actual situation can be determined according to the specific time on the trademark. Samsung ezonshs-dl50 is a smart door lock.

Intelligent door lock is an improved lock on the basis of traditional mechanical lock, which is more intelligent and simple in terms of user safety, identification and management. Intelligent door lock is the executive part of door lock in access control system.

Different from the traditional mechanical lock, the intelligent door lock is a safe, convenient and technologically advanced compound lock.

Magnetic card and radio frequency card (non-contact, high security, plastic material, easy to configure and carry, low price)

Mature technologies that use non-mechanical keys as user identification ID, such as:

Fingerprint lock, iris recognition access control (biometric, high security, not lost or damaged; But the configuration is inconvenient and the cost is high)

TM card (contact, high security, stainless steel material, extremely convenient to configure and carry, low price)

Widely used in the following places: banks, government departments (pay attention to safety), hotels, school dormitories, residential quarters, villas, hotels (pay attention to convenient management)