LED密码锁的基本功能如下1)使用LED显示器来显示密码锁输入的相关消息.(2)可以设置4位数字密码(0-9)密码.(3内定另一组4位数字密码为“1234”。(4密码输入正确则继电器启动2 S。(5密码输入错误则发出警报声。-LED locks the basic functions are as follows 1) the use of LED displays to show the relevance of the password lock information input. (2) can be set up 4-digit code (0-9) password. (3 designated another group of 4 digits password for the " 1234 . " (4 to enter the correct password to start the relay 2 S. (5 password input error is warning sound.