Philips PM 6671 High Resolution Timer/Counter 120MHz Frequency Meter

0.1-65MHz High Precision Frequency Counter with 2.5ppm TCVCXO & 10Hz Resolution

PHILIPS PM6654C HIGH RESOLUTION FREQUENCY COUNTER, DC to 120 MHz (REF.: 491N)

0.1-65MHz High Precision Frequency Counter with 2.5ppm TCVCXO & 10Hz Resolution

0.1-65MHz RF Red Signal Frequency Counter, 10Hz Resolution, High Brightness LED

0.1-65MHz High Precision Frequency Counter with 2.5ppm TCVCXO & 10Hz Resolution

Function/Arbitrary Generator 250 MHz Frequency Counter 1μHz~6/11/21/31/46/60MHz

0.1-65MHz High Precision Frequency Counter with 2.5ppm TCVCXO & 10Hz Resolution