The Battery Voltage Monitor
The battery voltage monitor is installed free of charge in every control unit that can accept one. The control unit measures the voltage of the incoming power at its power terminals and transmits this value to the mobile phone app for display.
The mobile phone app has a calibrator to correct for minor component variations that occur in manufacture. To calibrate the battery voltage you need a trusted voltmeter to tell you the true voltage at the controller's terminals.
To enter Calibration Mode tap Enable Buttons on the app's Home screen. Double tap the Caravan Pilot title at the top of the screen. You will see the image at left.
Move the slide control in small increments until the voltage indicated matches that measured on the meter. Allow several seconds for the display to stabilise.
To Save tap the Caravan Pilot title once.