Measure voltage and current with this 21070T 1000A True RMS AC/DC Clamp Meter (58-29-03). It 's capable of taking accurate measurements of non-linear loads such as motordrives, florescent lights, and lamp dimmers. Equipped with an easy-to-read backlit digital display with bargraph, it's great for low light work environments. It has Capacitance, Frequency, Duty Cycle and Temperature functions to take on a multitude of tasks.