1.good protection 2.accuracy display 3.isolated transformer 4.OEM service offered 5.shore power Specification: Model AF60-110005Inputvoltage220VAC/110V ±20%/Phase1frequency50Hz Or 60HzoutputCapacity5KVAVoltage115VAC±20% or as per your requestPhase5frequency60Hz/50Hz/400HZfrequency Regulation±0.01%response time 2msDistortionClean Sine Wave THD<3% (Measured at full load)Phase AngleN/APower factor0. ...