Measures voltage, current, power, frequency, relationships between U-U, U-I, I-I all at the same time Auto Range RS-232 interface Anti-vibration, anti-skidding, high-insulation case LCD Backlight Specifications AC Voltage (V) 0V~600V AC Current (A) 0mA~20A Frequency (Hz) 45Hz~65Hz Power 1.5V battery (LR6) x 6 Product size 196mm x 92mm x 54mm Active power (W) 0W~12kW Apparent power (VA) 0VA~12kVA Reactive power (VAR) 0VAR~12kVAR Power factor -1~+1 Phase angle (") 0"~360"