Owner's Manual

With the display on, the default indicators are riding speed, trip 2, PAS level,
and battery indicator as shown in fig below. Press SET to switch the display
information.
Section 1
1.1
ON/OFF
Press ON/OFF then the display is activated. The display will provide
power for the controller. Press ON/OFF again to activate the
backlight. With display on, press ON/OFF for 3 seconds to turn off
power. With the display off, there is no battery power consumption. 
*The panel will automatically power-off when speed is 0 km/h for 5 minutes