Optoelectronics FC-50 Frequency Counter Tested Working 8 digits ! Ships Fast !

Mercer Electronics Model 9800 Frequency 100 MHz Multifunction Counter

ProTek B-2000A Universal Frequency Counter, Up To 2 GHz , Tested

Sencore Model FC71 Frequency Freq Counter 10 Hz to 1 GHz CLEAN & WORKS + Adapter

Leader LDC-823S Digital Frequency Counter 250 MHz

Vintage DSI Model 3550 Frequency Counter 50 Hz-550MHz

Fluke PM6662 Frequency Counter High Precision Counter Timer Tested

Frequency Counter : GW Instek model GFC-8010H; functional, working, clean