BK Precision Dynascan Model #1801 Frequency Counter Powers Up Pre Owned

DataScan MODEL C1400 10HZ-1..4GHZ FREQUENCY COUNTER * Untested

EIP Phase Matrix Model 548B CW Microwave Frequency Counter 26.5 GHz

Simpson 7026 Universal Electronic Counter Frequency Timer Test Equipment

Heathkit IM-2410 Digital Frequency Counter

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

Hewlett Packard HP 5383A Frequency Counter 520 MHz

OPTOELECTRONICS OPTO-7000 FREQUENCY COUNTER - No Power cord