Fluke 375 true rms ac dc clamp meter fluke fluke 375 p with true rms ac voltage and current measurements the fluke 375 true rms ac dc clamp meter can ready up to 600v and 600a in both ac and dc modes and is capable of frequency measurement up to 500 hz additionally the fluke 375 is compatible with the new iflex flexible current probe sold separately which expands the measurement range to 2500a ac p p fluke 375 true rms ac dc clamp meters feature an integrated low pass filter and sta