Fluke 117 digital multimeter fluke fluke 117 the fluke 117 rms digital multimeter is another impressive addition to the fluke testing range the fluke 117 measures frequency and capacitance as well as true rms ac voltage the vast range of features of the fluke 117 make this the ideal multimeter for testing in demanding environments while the non contact voltage detection facility enables users to work quickly and safely with a clear display bargraph updated 4 times per second autoranging