Amprobe ACDC-3000 Clamp-On Multimeter has a variety of functions, including TRUE RMS measurement for non-linear and traditional loads, allowing it to accurately measure current waveforms even in the presence of harmonics. It also has a wide range of current and voltage measurement capabilities, from 40A to 1000A and 4V to 600V respectively, and can measure both AC and DC. Additionally, it can measure resistance from 400Ω to 40MΩ, and has a frequency measurement range of 5Hz to 100kHz.