Secure Power SP203 - The Function of LED Indicators; LCD Display Functions

Secure Power Ltd
User Manual
10
Non-function setting mode:
Press and hold the key for more than 2 seconds: Function setting interface.
Function setting mode:
Press and hold the key for more than half a second (less than 2 seconds): Affirm the set option.
Press and hold the key for more than 2 seconds, exit from this function setting interface.