HP 5345A / Agilent 5345A High Speed Electronic Counter Mainframe Only, No Options

<p>This powerful counter has a frequency range to 500 MHz, and actually counts to 750 MHz. It has an easy-to-read 11 digit LED display and measures frequency, period, period average, time interval, time interval average, ratio, totalize, and more. 2 ns single-shot resolution, 2 ns averaged.</p>