Hioki 8206-01 Dual-Channel Micro HiCorder Custom Kit with 9651 Clamp-On Sensor, 500A AC Current Two-channel data recorder that records and prints AC voltage and current simultaneously, for testing and managing power lines True RMS (root mean square) rectification system to read distorted waveforms accurately Analog dial sets the input range and paper-feed speed Voltage range of AC 100V, 200V, or 500V and of AC 10 to 1,000 amp depending on clamp on sensor used (comes with Clamp On Sensor 9651, which has 10, 20, 50, 100, 200, and 500 amp AC) Meets EN 61010 safety standards, and EN 61326, EN 61000-3-2, and EN 61000-3-3 EMC standards