# Frequency Counters When an engineer needs a piece of electronic test equipment that will accurately measure frequency, he or she uses a frequency counter. Frequency counters measure a repetitive electronic signal’s oscillations per second. This tool uses a frequency counter, which analyzes the number of oscillations or pulses in a specific time. There are frequency counters designed for radio and microwave frequencies, depending on the application. Shop used and refurbished frequency counters at ValueTronics.com for superb savings. ## Products in this collection - [Agilent 53131A 225 MHz Universal Frequency Counter, 10 Digit/s (Pre-Owned)](https://valuetronics.com/products/53131a-agilent-frequency-counter-used) - 795.0 USD - [1803D B&K Precision Frequency Counter New](https://valuetronics.com/products/1803d-b-k-precision-frequency-counter-new) - 285.0 USD - [B&K Precision 1823A 2.4GHz Universal Frequency Counter with Ratio Function (Pre-Owned)](https://valuetronics.com/products/1823a-b-k-precision-frequency-counter-used) - 492.0 USD - [PFM3000 Thurlby Thandar Instruments Frequency Counter New](https://valuetronics.com/products/pfm3000-thurlby-thandar-instruments-frequency-counter-new) - 251.0 USD - [Keysight 53210A 350 MHz RF Frequency Counter](https://valuetronics.com/products/53210a-keysight-frequency-counter-new) - 3809.0 USD - [TF930 Thurlby Thandar Instruments Frequency Counter New](https://valuetronics.com/products/tf930-thurlby-thandar-instruments-frequency-counter-new) - 534.0 USD - [1856D B&K Precision Frequency Counter Used](https://valuetronics.com/products/1856d-b-k-precision-frequency-counter-used) - 275.0 USD - [Agilent 53132A 225 MHz Universal Frequency Counter, 12 Digit/s (Pre-Owned)](https://valuetronics.com/products/53132a-agilent-frequency-counter-used) - 0.0 USD - [Keysight 53220A 350 MHz, 100 ps Universal Frequency Counter/Timer](https://valuetronics.com/products/53220a-keysight-frequency-counter-new) - 4409.0 USD - [Keysight 53220A 350 MHz, 100 ps Universal Frequency Counter/Timer (Pre-Owned)](https://valuetronics.com/products/53220a-agilent-frequency-counter-used) - 0.0 USD - [5384A Agilent Frequency Counter Used](https://valuetronics.com/products/5384a-agilent-frequency-counter-used) - 795.0 USD - [GFC-8010H Instek Frequency Counter New](https://valuetronics.com/products/gfc-8010h-instek-frequency-counter-new) - 214.5 USD - [Keysight 53230A 350 MHz, 20 ps Universal Frequency Counter/Timer](https://valuetronics.com/products/53230a-keysight-frequency-counter-new) - 6858.0 USD - [GFC-8010H Instek Frequency Counter Used](https://valuetronics.com/products/gfc-8010h-instek-frequency-counter-used) - 0.0 USD - [Tektronix FCA3020 20 GHz / 100 ps Timer/Counter/Analyzer (Pre-Owned)](https://valuetronics.com/products/fca3020-tektronix-frequency-counter-used) - 6580.0 USD - [TF960 Thurlby Thandar Instruments Frequency Counter New](https://valuetronics.com/products/tf960-thurlby-thandar-instruments-frequency-counter-new) - 710.0 USD - [Keysight 53210A 350 MHz RF Frequency Counter (Pre-Owned)](https://valuetronics.com/products/53210a-agilent-frequency-counter-used) - 1795.0 USD - [5361A Agilent Frequency Counter Used](https://valuetronics.com/products/5361a-agilent-frequency-counter-used) - 0.0 USD - [5351B Agilent Frequency Counter Used](https://valuetronics.com/products/5351b-agilent-frequency-counter-used) - 0.0 USD - [Tektronix FCA3020 20 GHz / 100 ps Timer/Counter/Analyzer](https://valuetronics.com/products/fca3020-tektronix-frequency-counter-new) - 15400.0 USD - [5385A Agilent Frequency Counter Used](https://valuetronics.com/products/5385a-agilent-frequency-counter-used) - 0.0 USD - [5343A Agilent Frequency Counter Used](https://valuetronics.com/products/5343a-agilent-frequency-counter-used) - 0.0 USD - [PM6680B Fluke Frequency Counter Used](https://valuetronics.com/products/pm6680b-fluke-frequency-counter-used) - 0.0 USD - [GFC-8131H Instek Frequency Counter New](https://valuetronics.com/products/gfc-8131h-instek-frequency-counter-new) - 335.5 USD - [HP 53152A 46 GHz CW Microwave Counter (Pre-Owned)](https://valuetronics.com/products/53152a-agilent-frequency-counter-used) - 0.0 USD - [Agilent 53181A 225 MHz RF Frequency Counter, 10 Digit/s (Pre-Owned)](https://valuetronics.com/products/53181a-agilent-frequency-counter-used) - 0.0 USD - [HP 53150A 20 GHz CW Microwave Counter (Pre-Owned)](https://valuetronics.com/products/53150a-agilent-frequency-counter-used) - 0.0 USD - [5316A Agilent Frequency Counter Used](https://valuetronics.com/products/5316a-agilent-frequency-counter-used) - 0.0 USD - [B&K Precision 1823A 2.4GHz Universal Frequency Counter with Ratio Function](https://valuetronics.com/products/1823a-b-k-precision-frequency-counter-new) - 492.0 USD - [RTH-K33 Rohde & Schwarz NEW](https://valuetronics.com/products/rth-k33-new-rohdes-unassigned-new) - 1020.0 USD - [1823B BK Precision Frequency Counter New](https://valuetronics.com/products/1823b-bk-precision-frequency-counter-new) - 604.0 USD - [1826B BK Precision Frequency Counter New](https://valuetronics.com/products/1826b-bk-precision-frequency-counter-new) - 814.0 USD - [Tektronix FCA3103 3 GHz / 50 ps Timer/Counter/Analyzer (Pre-Owned)](https://valuetronics.com/products/fca3103-tektronix-frequency-counter-used) - 0.0 USD - [PM6665 Philips Frequency Counter Used](https://valuetronics.com/products/pm6665-philips-frequency-counter-used) - 0.0 USD - [PM6680 Fluke Frequency Counter Used](https://valuetronics.com/products/pm6680-fluke-frequency-counter-used) - 0.0 USD - [DC503A Tektronix Frequency Counter Used](https://valuetronics.com/products/dc503a-tektronix-frequency-counter-used) - 0.0 USD - [1920A Fluke Frequency Counter Used](https://valuetronics.com/products/1920a-fluke-frequency-counter-used) - 0.0 USD - [5328A Agilent Frequency Counter Used](https://valuetronics.com/products/5328a-agilent-frequency-counter-used) - 0.0 USD - [ETHERSCOPE SERIES II Fluke Frequency Counter Used](https://valuetronics.com/products/etherscope-series-ii-fluke-frequency-counter-used) - 0.0 USD - [5300A Agilent Frequency Counter Used](https://valuetronics.com/products/5300a-agilent-frequency-counter-used) - 0.0 USD - [1953A Fluke 125 MHz Frequency Counter Used](https://valuetronics.com/products/1953a-fluke-125-mhz-frequency-counter-used) - 0.0 USD - [MF2413B Anritsu Frequency Counter Used](https://valuetronics.com/products/mf2413b-anritsu-frequency-counter-used) - 0.0 USD - [6430 Systron Donner Frequency Counter Used](https://valuetronics.com/products/6430-systron-donner-frequency-counter-used) - 0.0 USD - [MF1601A Anritsu Frequency Counter Used](https://valuetronics.com/products/mf1601a-anritsu-frequency-counter-used) - 0.0 USD - [MF2414B Anritsu Frequency Counter Used](https://valuetronics.com/products/mf2414b-anritsu-frequency-counter-used) - 0.0 USD - [MF2414C Anritsu Frequency Counter Used](https://valuetronics.com/products/mf2414c-anritsu-frequency-counter-used) - 0.0 USD - [MF2412B Anritsu Frequency Counter Used](https://valuetronics.com/products/mf2412b-anritsu-frequency-counter-used) - 0.0 USD - [MF1603A Anritsu Frequency Counter Used](https://valuetronics.com/products/mf1603a-anritsu-frequency-counter-used) - 0.0 USD - [585C EIP Microwave Frequency Counter Used](https://valuetronics.com/products/585c-eip-microwave-frequency-counter-used) - 0.0 USD - [PM6654 Philips Frequency Counter Used](https://valuetronics.com/products/pm6654-philips-frequency-counter-used) - 0.0 USD - [FC71 Sencore Frequency Counter Used](https://valuetronics.com/products/fc71-sencore-frequency-counter-used) - 0.0 USD - [5344A Agilent Frequency Counter Used](https://valuetronics.com/products/5344a-agilent-frequency-counter-used) - 0.0 USD - [1999 Racal Dana Frequency Counter Used](https://valuetronics.com/products/1999-racal-dana-frequency-counter-used) - 0.0 USD - [VRZ 480 Heidenhain Frequency Counter Used](https://valuetronics.com/products/vrz-480-heidenhain-frequency-counter-used) - 0.0 USD - [5341A Agilent Frequency Counter Used](https://valuetronics.com/products/5341a-agilent-frequency-counter-used) - 0.0 USD - [CMC251 Tektronix Frequency Counter Used](https://valuetronics.com/products/cmc251-tektronix-frequency-counter-used) - 0.0 USD - [MCA3027 Tektronix Frequency Counter New](https://valuetronics.com/products/mca3027-tektronix-frequency-counter-new) - 20500.0 USD - [SR620 Stanford Research Frequency Counter Used](https://valuetronics.com/products/sr620-stanford-research-frequency-counter-used) - 4950.0 USD - [PM6672 Philips Frequency Counter Used](https://valuetronics.com/products/pm6672-philips-frequency-counter-used) - 595.0 USD - [548A EIP Microwave Frequency Counter Used](https://valuetronics.com/products/548a-eip-microwave-frequency-counter-used) - 0.0 USD - [Tektronix FCA3000 300 MHz / 100 ps Timer/Counter/Analyzer](https://valuetronics.com/products/fca3000-tektronix-frequency-counter-new) - 5110.0 USD - [Tektronix FCA3120 20 GHz / 50 ps Timer/Counter/Analyzer](https://valuetronics.com/products/fca3120-tektronix-frequency-counter-new) - 18100.0 USD - [5383A Agilent Frequency Counter Used](https://valuetronics.com/products/5383a-agilent-frequency-counter-used) - 0.0 USD - [5351A Agilent Frequency Counter Used](https://valuetronics.com/products/5351a-agilent-frequency-counter-used) - 0.0 USD - [5315B Agilent Frequency Counter Used](https://valuetronics.com/products/5315b-agilent-frequency-counter-used) - 495.0 USD - [2440 Marconi Frequency Counter Used](https://valuetronics.com/products/2440-marconi-frequency-counter-used) - 0.0 USD - [5352A Agilent Frequency Counter Used](https://valuetronics.com/products/5352a-agilent-frequency-counter-used) - 0.0 USD - [PM6681 Fluke Frequency Counter Used](https://valuetronics.com/products/pm6681-fluke-frequency-counter-used) - 0.0 USD - [1910A Fluke Frequency Counter Used](https://valuetronics.com/products/1910a-fluke-frequency-counter-used) - 0.0 USD - [Tektronix FCA3003 3 GHz / 100 ps Timer/Counter/Analyzer](https://valuetronics.com/products/fca3003-tektronix-frequency-counter-new) - 7380.0 USD - [PM6676 Philips Frequency Counter Used](https://valuetronics.com/products/pm6676-philips-frequency-counter-used) - 0.0 USD - [MCA3040 Tektronix Frequency Counter New](https://valuetronics.com/products/mca3040-tektronix-frequency-counter-new) - 30100.0 USD - [5340A Agilent Frequency Counter Used](https://valuetronics.com/products/5340a-agilent-frequency-counter-used) - 0.0 USD - [5382A Agilent Frequency Counter Used](https://valuetronics.com/products/5382a-agilent-frequency-counter-used) - 0.0 USD - [PM6666 Philips Frequency Counter Used](https://valuetronics.com/products/pm6666-philips-frequency-counter-used) - 395.0 USD - [Tektronix FCA3100 300 MHz / 50 ps Timer/Counter/Analyzer](https://valuetronics.com/products/fca3100-tektronix-frequency-counter-new) - 7910.0 USD - [5350B Agilent Frequency Counter Used](https://valuetronics.com/products/5350b-agilent-frequency-counter-used) - 0.0 USD - [5370A Agilent Frequency Counter Used](https://valuetronics.com/products/5370a-agilent-frequency-counter-used) - 0.0 USD - [5386A Agilent Frequency Counter Used](https://valuetronics.com/products/5386a-agilent-frequency-counter-used) - 0.0 USD - [Tektronix FCA3103 3 GHz / 50 ps Timer/Counter/Analyzer](https://valuetronics.com/products/fca3103-tektronix-frequency-counter-new) - 10300.0 USD - [5370B Agilent Frequency Counter Used](https://valuetronics.com/products/5370b-agilent-frequency-counter-used) - 0.0 USD - [5345A Agilent Frequency Counter Used](https://valuetronics.com/products/5345a-agilent-frequency-counter-used) - 0.0 USD - [5334B Agilent Frequency Counter Used](https://valuetronics.com/products/5334b-agilent-frequency-counter-used) - 695.0 USD - [B-1000 Protek Frequency Counter Used](https://valuetronics.com/products/b-1000-protek-frequency-counter-used) - 0.0 USD - [1900A Fluke Frequency Counter Used](https://valuetronics.com/products/1900a-fluke-frequency-counter-used) - 0.0 USD - [5361B Agilent Frequency Counter Used](https://valuetronics.com/products/5361b-agilent-frequency-counter-used) - 0.0 USD - [5381A Agilent Frequency Counter Used](https://valuetronics.com/products/5381a-agilent-frequency-counter-used) - 0.0 USD - [7260A Fluke Frequency Counter Used](https://valuetronics.com/products/7260a-fluke-frequency-counter-used) - 0.0 USD - [5352B Agilent Frequency Counter Used](https://valuetronics.com/products/5352b-agilent-frequency-counter-used) - 0.0 USD - [5342A Agilent Frequency Counter Used](https://valuetronics.com/products/5342a-agilent-frequency-counter-used) - 0.0 USD - [5350A Agilent Frequency Counter Used](https://valuetronics.com/products/5350a-agilent-frequency-counter-used) - 0.0 USD - [5334A Agilent Frequency Counter Used](https://valuetronics.com/products/5334a-agilent-frequency-counter-used) - 0.0 USD - [5335A Agilent Frequency Counter Used](https://valuetronics.com/products/5335a-agilent-frequency-counter-used) - 0.0 USD - [5348A Agilent Frequency Counter Used](https://valuetronics.com/products/5348a-agilent-frequency-counter-used) - 0.0 USD - [548B EIP Microwave Frequency Counter Used](https://valuetronics.com/products/548b-eip-microwave-frequency-counter-used) - 1990.0 USD - [5326C Agilent Frequency Counter Used](https://valuetronics.com/products/5326c-agilent-frequency-counter-used) - 0.0 USD - [GFC-8270H Instek New](https://valuetronics.com/products/gfc-8270h-instek-frequency-counter-new) - 434.5 USD - [PM6685 Fluke Frequency Counter Used](https://valuetronics.com/products/pm6685-fluke-frequency-counter-used) - 0.0 USD - [MF2412C Anritsu Frequency Counter Used](https://valuetronics.com/products/mf2412c-anritsu-frequency-counter-used) - 0.0 USD - [538B EIP Microwave Frequency Counter Used](https://valuetronics.com/products/538b-eip-microwave-frequency-counter-used) - 0.0 USD - [5328B Agilent Frequency Counter Used](https://valuetronics.com/products/5328b-agilent-frequency-counter-used) - 0.0 USD - [E1420A Agilent Frequency Counter Used](https://valuetronics.com/products/e1420a-agilent-frequency-counter-used) - 0.0 USD - [E1420B Agilent Frequency Counter Used](https://valuetronics.com/products/e1420b-agilent-frequency-counter-used) - 0.0 USD - [545A EIP Microwave Frequency Counter Used](https://valuetronics.com/products/545a-eip-microwave-frequency-counter-used) - 895.0 USD - [578 EIP Microwave Frequency Counter Used](https://valuetronics.com/products/578-eip-microwave-frequency-counter-used) - 0.0 USD - [5327C Agilent Frequency Counter Used](https://valuetronics.com/products/5327c-agilent-frequency-counter-used) - 0.0 USD - [TR5822 Advantest Frequency Counter Used](https://valuetronics.com/products/tr5822-advantest-frequency-counter-used) - 0.0 USD - [451 EIP Microwave Frequency Counter Used](https://valuetronics.com/products/451-eip-microwave-frequency-counter-used) - 0.0 USD - [5326B Agilent Frequency Counter Used](https://valuetronics.com/products/5326b-agilent-frequency-counter-used) - 0.0 USD - [5316B Agilent Frequency Counter Used](https://valuetronics.com/products/5316b-agilent-frequency-counter-used) - 495.0 USD - [5314A Agilent Frequency Counter Used](https://valuetronics.com/products/5314a-agilent-frequency-counter-used) - 0.0 USD - [5245L Agilent Frequency Counter Used](https://valuetronics.com/products/5245l-agilent-frequency-counter-used) - 0.0 USD - [Keysight 53230A 350 MHz, 20 ps Universal Frequency Counter/Timer (Pre-Owned)](https://valuetronics.com/products/53230a-agilent-frequency-counter-used) - 3495.0 USD - [HP 53151A 26.5 GHz CW Microwave Counter (Pre-Owned)](https://valuetronics.com/products/53151a-agilent-frequency-counter-used) - 0.0 USD - [5246L Agilent Frequency Counter Used](https://valuetronics.com/products/5246l-agilent-frequency-counter-used) - 0.0 USD - [5326A Agilent Frequency Counter Used](https://valuetronics.com/products/5326a-agilent-frequency-counter-used) - 0.0 USD - [5315A Agilent Frequency Counter Used](https://valuetronics.com/products/5315a-agilent-frequency-counter-used) - 0.0 USD - [5248L Agilent Frequency Counter Used](https://valuetronics.com/products/5248l-agilent-frequency-counter-used) - 0.0 USD - [1856D B&K Precision Frequency Counter New](https://valuetronics.com/products/1856d-b-k-precision-frequency-counter-new) - 625.0 USD - [5248M Agilent Frequency Counter Used](https://valuetronics.com/products/5248m-agilent-frequency-counter-used) - 0.0 USD --- > Source: [ValueTronics](https://valuetronics.com/collections/other-equipment-frequency-counter) > Updated: 2026-06-03