1Open or close the output: You can press the ON/OFF button to open or close the output on any interface. 2Lock the button to avoid wrong operation: On any interface, you can keep pressing coding potentiometer for 2 seconds, all buttons are locked. Keep pressing coding potentiometer for 2 seconds to unlock all buttons. You can see the key lock/unlock icon on 3M0-M9 ten data groups: M0 group is the boot default data group. When you extract the data group you need, this data group will cover M0 data group and be automatically stored on M0 data group. 4You can fast extract shortcut storage data group M1 or M2 and extract the specified data group. 5Safety Protection: Input Polarity Protection, Output Short-circuit Protection.