... airport etc.Function Features:Steady-state test: automatically detect 3-phase voltage, current, active power, inactive power, apparent power, ... 3. For the replace judgment for the old UPS devices. Test the output power and loading capability of AC voltage ... Current DisplayResolution: 0.1A,Accuracy: 0.5%Input VoltageAC 3 Phase 380V / AC 1 Phase 220VDischarging Time0~99 hours 59 minutes, constant ...