View real-time activity on the informative 32 character LCD screen while the unit is operating: Output voltage, Frequency, Amps, Watts, Volt Amps, Power Factor, Battery Voltage, Battery Current, Solar Input Current and more. Save a parameter set on a removable 16GB SD Card and transfer saved parameters to other EVO™ inverter/chargers or insert the SD card into a computer and make parameter adjustments there.