In the center of the panel sits the AeroCool logo, which can be pressed to unlock the panel to make any necessary adjustments. To the left and right of it are arrows which will scroll through the fan and temperature readings, even when the panel is locked. Towards the left and right of those arrows are the readouts of the RPM and temperatures (Celsius or Fahrenheit). A plus, top right hand corner, and a minus, lower left hand corner, allow you to make any necessary adjustments to your temperature alarm or fan speed.
The upper left hand corner of the panel shows which fan the current RPMs are, while in the bottom right hand corner it displays which temperature sensor is being displayed.
Here is a video showing the panel in action.