Frequency Counters
frequency counters — pre-owned
Browse 3,380 frequency counters — pre-owned on eBay — listings updated every few minutes. All items are pre-owned and sold by eBay sellers directly.

HP 5381A Frequency Counter 80MHz
Note taking was diligent. We can not confirm, so all units are sold as is.

KEYSIGHT/Agilent/HP 53132A 225 MHz Universal Frequency Counter/ Fast shipping
1PCS; 53132A. We are founded in 2010, is a professional purchasing B2B & B2C tool in electronic components field. We will reply you in 24 hours and give your a satified answer. During the warranty period, we can help them repair for free.

HP 5352B Microwave Frequency Counter 40 GHz CW Hybrid Front End System OPT 10.
Hybrid GaAs Front End : Provides enhanced sensitivity and performance for microwave signals. The unit shows normal signs of use and is in great condition. This is a valuable tool for engineers and technicians working with high-frequency and microwave systems.

Racal-Dana 1992 Nanosecond Universal Counter DC-1.3GHz UNTESTED Powers On
The Racal-Dana 1992 Nanosecond Universal Counter is a high-quality frequency counter designed to measure frequencies from DC to 1.3 GHz with precision and accuracy. This untested unit powers on and is ideal for various applications in the field of test meters and detectors. With its reliable brand reputation and range of measurement capabilities, this counter is a valuable tool for ensuring the quality and performance of electronic devices and systems. Untested powers on

HP / Agilent 5384A Frequency Counter 10 Hz-225 MHz w/ GPIB & BNC Cable Dual Ch.
The HP / Agilent 5384A Frequency Counter is a high-quality unit designed for precision measurement within the frequency range of 10 Hz to 225 MHz. With dual channels and a GPIB and BNC cable included, this frequency counter is versatile and convenient for various industrial and business applications. Made by Agilent in the United States, this product ensures reliability and accuracy in counting frequencies, making it a valuable tool for inspection and test measurement tasks.

HP 5381A Frequency Counter 80MHz

Philips PM6675 Universal Frequency Counter 600 MHz Used Powers On
Philips PM6675 Universal frequency Counter 600 MHz. Unit powers on when plugged in. We have not tested any further. Was used by NASA at one point. There are some cosmetic flaws such as scuffs and scratches around the case. NO POWER CORD INCLUDED. Ready to ship today check out our other deals.

Simpson 2725A Nixie Tube Electronic Counter
Simpson 2725A Nixie Tube Electronic Counter Powers on, has not been tested further

HP 5314A Universal Frequency Counter - Tested & Accurate - Beautiful condition!
HP 5314A Universal Counter. Counter reading:1,000.000 Hz. Counter reading:~100,000 Hz. Counter reading:1,000,702 Hz. Input connectors clean and solid. Result: Perfect lock, stable reading. Result: Stable and within expected tolerance.

Racal Dana 1992 Frequency Counter
The Racal Dana 1992 Frequency Counter is a high-quality test meter and detector designed for precise measurements and inspections in various industrial and business applications. Made by Racal Dana in the United States, this frequency counter offers accurate readings and reliability for ensuring quality control in a wide range of testing scenarios. Its brand reputation and country of origin reflect its superior craftsmanship and performance, making it a trusted tool for professionals seeking precise measurements and inspections.

Computer Measurements Company Nixie Frequency Converter Counter 707BN 741B 730C
This is a vacuum tube based instrument. In great condition, both parts turn on but functionality could not be tested. Free local pickup

Good Working Racal-Dana 1992 Nanosecond Universal Counter
Working Racal-Dana 1992 nanosecond universal counter. Comes with AC power cord.

Vintage Ramsey Electronics Model CT-125 Frequency Counter WORKING
The Vintage Ramsey Electronics Model CT-125 Frequency Counter is a product manufactured in the United States by Ramsey Electronics. It is a precision instrument used for measuring frequency accurately. This particular model is designed for industrial and professional use, offering reliable results for testing and measurement purposes. The brand's reputation for quality and durability makes this frequency counter a valuable tool for those in need of precise measurements.

Racal-Dana 1992 Nanosecond Universal Counter - Free Shipping
Condition: F4-C4. Used, Good Working. (Cables, user manual are not included).

TTi TF960 6GHz COUNTER (used) Full Working
Low power consumption.

Working, Vintage Heathkit IM-4130 Digital Frequency Counter Ham/Amateur Radio

Heathkit IM-4100 (EIA-416) Digital Frequency Counter Ham Radio
In good working condition, but has scratches, signs of use and surface marks.

Fluke PM6666 Programmable Timer Counter 160MHz 1.3GHz Tested Working
Model PM6666. Manufacturer Fluke. This item was tested for Key Functions, R2, Ready for Resale. We are committed to working with you to resolve any issues and make things right. Condition Device is in working condition.

LEADER LDC-822 DIGITAL FREQUENCY COUNTER 80 MHz CLEAN!
Salesbaron is in Los Angeles, 90039.

Radio Shack LCD RF Frequency Counter 22-306 (Powers up - Untested)
Powers up.
You save $3.20

HP 5315A Universal Counter
The Agilent 5315A is a low-cost portable bench version of the 5316B high-performance universal counter. Unique counting circuitry gives the best of both reciprocal and conventional frequency counting.

HP 5328A Universal Counter C-Channel 500 MHz Option H99 Opt 011 and 42
HP 5328A Universal Counter C-Channel 500MHz Option H99. he HP / Agilent 5328A is a 9-digit, programmable Universal Counter suitable for benchtop and system automation. Unit have option 011 HP-IB. Great working Condition C Channel is useable to roughly 900 MHz Though Spec is 500MHz.

Systron Donner 6054D Frequency Counter + Opt 18 (tested up to 3GHz)
The display is nice and bright! It's working well and has been tested up to 3GHz.

XL Microwave 3180 10Hz-18GHz Frequency Counter (nice, tested up to 1.5GHz)
This frequency counter is in nice shape with just a few scratches on top. It's been tested up to 1.5GHz (the limit of our signal generator) and seems to be working well.

HP 5350B Microwave Frequency Counter
Model Number: 5350B. Manufacturer: HP. This item has been tested for key functions. All manufacturers' warranties are void unless otherwise stated.

HP 5385A Frequency Counter With 004 OVEN OSC
This item is fully tested and in excellent working order. Item will come with a 30 Day Warranty. Cosmetically in good condition showing minor scuffs / scratches / blemishes from previous use. Includes Frequency Counter With 004 OVEN OSC as pictured. No additional items or accessories are included. Unless pictured, no power adapter / power cable included. Photos are of the actual unit for sale. Inventory is on hand and ready to ship. Please feel free to message us with any questions you may have. .

Optoelectronics Universal Counter Timer OEI Series 8030 Model UTC8030
Good condition, exactly as shown, see pictures. Serial Number 10349R4-051592.
You save $60.00

LG Precision FC-7150U Universal Frequency Counter 1.5 GHz
Universal Frequency Counter 1.5 GHz. LG Precision FC-7150U. LG Precision FC-7150U Performance Characteristics Minimum Frequency, Ch. Maximum Frequency, Ch. 1: 150 MHz. 2: 150 MHz. All units sold will havevoid seals attached.

Time Interval Counter 800MHz 25ps accuracy FemtoSec resolution PD RT/FT Jitter
Selectable for finding either peaks or flat spots. Minimum pulse amplitude of only 50mV peak to peak is required.

Computer Measurement Company CMC 603A Electronic Counter
CMC 603A Electronic Counter. Mistakes may happen and might go above and beyond to resolve any issues. We always reply within a few hours. We will respond and resolve any issue very shortly. What you see in the photos is what exactly you receive.
You save $25.00

SYSTRON DONNER 6530 26.5 GHz Microwave Frequency Counter
This sale is for a SYSTRON DONNER 6530 26.5 GHz. range and 50 ohm input for the 100MHz to 26.5GHz range. This is a nice counter. 39014/824/10/15 9 5/wa. U.S. sales ONLY. Diversion is subject to civil and criminal penalties.
You save $124.99

EIP 548B Frequency Counter 26.5 GHz TESTED OK. excellent condition.

OPTOELECTRONICS OPTO-7000 FREQUENCY COUNTER - No Power cord
The Optoelectronics Opto-7000 Frequency Counter is a high-quality device specifically designed for measuring frequencies up to 600 MHz. With its accuracy and reliability, it is ideal for a variety of industrial and scientific applications where precise frequency measurements are essential. As a product from Optoelectronics, Inc., you can trust that it meets the highest standards of quality and performance. Please note that this listing does not include a power cord, so ensure you have a suitable power source available for operation.

Lot of 2 Fluke PM6666 Programmable Timer Counter 160MHz 1.3GHz Tested
Model PM6666. Manufacturer Fluke. This item was tested for Key Functions, R2, Ready for Resale. We are committed to working with you to resolve any issues and make things right. The condition of this item is used and may have dents, scuffs and scratches from normal use.

HP 5315A Universal Counter
Prefer to pick it up yourself?. Will you need a Lift Gate?. Branford Group Industrial Surplus is a premier industrial surplus warehouse. We will need to know the following Do you have a Forklift?. Will there be a Dock or Ground level door?.
You save $10.00

Fluke Frequency Counter - Model 1900A - 5Hz to 80Mhz - Turns On
Great find!

HP / Agilent 53132A 225 MHz 12 digits/s Frequency Counter/Timer. Option 030
Original HP / Agilent Option 030 - 3.0 GHz RF Input Channel 3. Power cord. The display is very bright and even.

Vintage DSI Model 3550 Frequency Counter 50 Hz-550MHz Powers On
Good condition. Unit does turn on.

EIP MODEL 548 A Microwave Frequency Counter WORKING
EIP Model 548 A Microwave Frequency Counter Includes: leather tote bag, power cables and several other cables, and the manual in a hard cover binder. In amazing condition for its age. Comes in blue leather EIP bag/tote In working condition

E&L 175mHz DIGITAL UNUVERSAL FREQUENCY COUNTER FC-01 Tested Working
E&L 175mHz DIGITAL UNUVERSAL FREQUENCY COUNTER Model: FC-01 Tested Working, I did need to use a power cord from something else I own so I don’t have one to send with it but see photos it’s a very common cord almost everyone owns! In good shape it’s older so not perfect but works fine! Do these need calibration? I don’t know that! Shipped via usps within 24 hours guaranteed! Any questions please ask!