Frequency, period, pulse width, frequency ratio duty cycle, and event counter modes DC to 3000MHz range, 0.001mHz resolution High impedance measurement up to 125 MHz AC or DC coupling, 1M/50Ohm selection, polarity invert Switch able attenuator, threshold control Noise filter for low frequency measurements Selectable measurement time; display hold function Large 10 digit display with full range of enunciators Internal rechargeable batteries for portable use USB interface provides full remote control and read back