... , over-current, over-power, over-heat and reverse connection of polarities protection.LCD backlight, digital keyboard and knob.High resolution.8 groups setting ... , USB(option)ProtectionOver-voltage, over-current, over-power, over-heat and reverse connection of polarities protectionSoftwareElectronic load software, VB, VC++, DELPHI, LABVIEWStandard ...