How to scan the code to unlock without power?

1 With the emergency power supply, the password lock can be easily opened without electricity.

Password locks are all designed with emergency power supply system, and the emergency power supply port of password locks is generally designed at the bottom of the outer panel or at the password disk in the upper slide cover. As long as you find the emergency power port provided by the manufacturer and connect the charging treasure, you can easily provide emergency power to the password lock and open the password lock with a password or fingerprint.

It should be noted that after the password lock is opened, the battery should be replaced in time to avoid the problem that the lock cannot be unlocked without power.

Data expansion

Electronic password lock is an electronic product that controls the mechanical switch to close and complete the task of unlocking and locking by controlling the circuit or chip (access control system) through password input.

There are many kinds of it, including simple circuit products and cost-effective products based on chips. At present, the widely used electronic password lock is realized by programming with the chip as the core.

Electronic lock In the field of security technology, the electronic password lock with anti-theft alarm function replaces the traditional mechanical password lock, which overcomes the shortcomings of mechanical password lock such as less passwords and poor security performance, and greatly improves the technology and performance of the password lock.