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LEADER LDC-824S DIGITAL FREQUENCY COUNTER 520Mhz

HP 5315A 100 MHz Universal Frequency Counter

Fluke/Philips PM6666 Programmable Benchtop Counter Timer 120MHz

Lab Volt Frequency Counter 9403-00 Display Unit

LEADER LDC-824S DIGITAL FREQUENCY COUNTER 520Mhz

Fluke 7260A Universal Counter Timer 100-220V Tested. Powers ON. Nice!

Hewlett Packard 5316A Universal Counter