Introduction - If you have any usage issues, please Google them yourself
1. button set 6 bit password, enter the password, if the password is correct, then open the lock. Display open!
2., passwords can be modified (6 bit password), must be locked to open when you can change the password. In order to prevent misoperation, the password has to be entered two times.
3. if the password input error more than 3 times, the buzzer alarm and lock the keyboard.
4.24C02 has reset, power down, save password function.
5. the brightness of LCD screen will be adjusted automatically with light.