usb current voltage capacity power detection test instrument mobile phone charger mobile power MX19 monitor

Features:
-Timed shutdown setting
Keep clicking the button until the screen display is shown on the right. Then long press the button for 3 seconds, the number on the screen will flash. Click the button again to increase 30 minutes delay shutdown. Then long press the button for 3 seconds to save your settings.
-Overvoltage protection setting
Keep clicking the button until the screen display is shown on the right. Then long press the button for 3 seconds, the number on the screen will flash. Click the button again to increase 0.5 volts. Then long press the button for 3 seconds to save your settings.
-Overcurrent protection setting
Keep clicking the button until the screen display is shown on the right. Then long press the button for 3 seconds, the number on the screen will flash. Click the button again to increase 0.5A current. Then long press the button for 3 seconds to save your settings.
-When back to the main page, long press the button for 3 seconds to clear saved data of cumulative working time, electricity and energy.

Current and voltage calibration method :
-Please use 5.000V standard voltage . Hold the button until “Factory setting”appear on the LED screen . It will calibrate automaticly.