Fluke/Philips PM6666 Programmable Benchtop Counter Timer 120MHz

HP 53131A Universal Frequency Counter/Timer 225 MHz / UNTESTED⚠️

HP 5316a 100mhz dual channel universal frequency counter look

Racal-Dana 9919 UHF Frequency Counter 10Hz to 1.1 GHz

Fluke PM6669 Universal Frequency Counter 160MHz / 1.3 GHz

BK B&K Precision Model 1823A 2.4GHz Universal Frequency Counter PARTS

Philips PM6654C Programmable High Resolution Timer/Counter

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