The 5246L Frequency Counter offers the basic 0 to 50 MHz range, and many of the circuit benefits and plug-in accessory features of the 5245L. The 5246L has display storage, a 6-digit readout, and without any plug-ins, measures frequency. AC coupled, 25 Hz to 50 MHz. Gate time: 1 µS to 10 S in decade steps. Time base frequency (internal): 1 MHz. Single input with maximum sensitivity of 100 mV rms. Plug-ins sold separately.