Panel features:

1. Adopting a rotary knob without the need for additional installation, it is aesthetically pleasing and easy to install.

2. Adopting dual passwords for more flexible use.

3. Undervoltage alarm, password input error 3 times alarm lock function.

4. Password is 3-8 digits long.

5. Support mute function, button sound can be freely turned on or off.

6. Adopting an external battery box makes battery replacement convenient.