Website : http://www.gossenmetrawatt.com List of published articles : Test Instrument per VDE 0100 / IEC 364-6-61 MAVOWATT 30: 3-Phase Energy and Power Disturbance Analyzer PowerVisa MAVOLOG 20P: Test Instrument for Monitoring Voltage Quality U1281: Active Energy, 2-Wire AC Systems, PTB Approval, 5 (65) A, LCD SINEAX CAM: Universal heavy current measuring unit