To turn on your BBPOS WisePad 3, press and hold the power button located at the top right of the PIN pad. The display will then power on and show the device's splash screen.
After a few seconds of inactivity, the display will dim. If inactive and disconnected from your application for more than 5 minutes, the device will beep and then turn off. You can turn the reader off manually by pressing and holding the power button until the LED display shows a “Power off?” prompt, then press the green enter button to confirm.