In Figure 10, you can see the Sentry LXE turned on. All the five channels are shown at the same time on the screen. The screen shows, at the left, the current temperature of each sensor. At the middle, the bar graph shows the speed of the fan, and the four digits at the right show the approximate fan rpm.
The fan controller has two modes: auto and manual, switchable by touching the spot next to the power symbol. At the "auto" mode, the controller sets the fan speed according to the respective sensor temperature. At the manual mode, you can set the speed of each fan touching the number of the channel and then touching the "+" and "-" symbols at the bottom left of the screen. You can even turn off a fan.
At the bottom of the screen, the controller shows current time and date. You can turn off the screen by touching the power symbol at the left.
Another nice feature is the temperature alarm: you can set an alarm for each channel and, if the temperature rises over that value, the buzzer located at the internal unit beeps.
Even if you connect less than five fans, you can use all the thermometers. The controller also comes with two spare temperature sensors.