Functional Specifications：
The factory code is 1234.
1, Install the battery to make the lock has power, enter 1234 then press “#”button, the green LED is light, the buzzer sounds one “chrip”, open the door successfully.
二、修改密码：按下红色编码键，黄灯长亮，进入编码状态，输入1-8位任意码，按*键确认，蜂鸣器听见“滴”三声，密码设置完成。“滴”四声表示修改密码失败；
2, to change the code :Press the red button, yellow LED is long light , the program into programming state , enter any 1-8 digits code ,then press “*” button to confirm ,
三、开门：输入正确密码，按#键，绿灯亮，蜂鸣器“滴”三声，进入开门状态；
Unlock : Enter right code then press “ #” key ,the green LED light ,the buzzer have “di” three times.
四、欠压指示：开门时，红绿灯同时亮，表示电压不足，电子锁仍可开启100次以上，但请尽快更换电池。
Low voltage indicating : When you open the door you find the green and red LED light at the same time.You need to change the battery as soon as possbile.
五、锁键盘：连续三次输入密码错误，则自动锁定键盘1分钟后自动解除（即使断电键盘也继续锁定）。
To lock keypad : Input wrong code three time in a row the keypad will be locked one minutes.(whether you put power out it still be locked too.)
