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Best Deal: Certified Used Keysight 53230A 350 MHz Universal Frequency Counter/Timer

Achieve Innovation with Reliable Tools

✔ Trade-In Options for Upgrades
✔ Dedicated Technical Support
✔ Customizable Orders

Full Product Info

Key Specifications

Input Channels


Max Frequency

350 MHz


12 digits/s

Time Interval Resolution

20 ps

Optional Third Channel

 6 GHz or 15 GHz

Unmatched Accuracy with the 53230A 350 MHz Universal Frequency Counter/Timer

  • Exceptional Precision: With 12 digits/second resolution and 20 psec time interval resolution, the 53230A offers unparalleled accuracy for your frequency and time interval measurements.
  • Continuous Measurements: The 53230A allows for continuous and gap-free measurements, providing basic modulation domain analysis without any interruptions.

Enhanced Usability and Versatility for Diverse Applications

  •  Built-in Math Analysis: The 53230A has a built-in math analysis feature, enabling you to perform complex calculations without additional software or tools.
  •  Color, Graphical Display: The 53230A features a color, graphical display that shows trends and histograms, making it easier to visualize and interpret your data.

5 Reasons to Buy Used from Keysight

  • Certified Quality: Enjoy up to 5 years warranty on our used devices. As the OEM, we guarantee product quality and quick repairs.
  • OEM Refurbishment: Keysight Premium Used equipment matches new quality, complete with the same firmware, software, and accessories.
  • Technical Support: Benefit from cost-effective tools and unmatched OEM support through KeysightCare, offering personalized assistance and a vast knowledge base.


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What are the main differences between Keysight New, Keysight Premium Used & Keysight Used equipment?

  Keysight New Keysight Premium Used Keysight Used
Savings None Up to 70% Up to 90%
Condition New Like New Working Condition ¹
Firmware Latest Updated As is
Calibration Full Full As listed
Accessories New New As listed
Warranty 1 to 5 Years ² Like New 90 Days Warranty
Customization Possible Possible Limited

Learn more about Keysight Premium Used Here

Can I configure a unit to meet my personal needs?

Customization is generally possible with our Keysight Premium Used equipment. The majority of our Keysight Premium Used equipment can be configured just the way you need it. Options can be added at additional cost.
Customizing Keysight Premium Used equipment might change the delivery and lead time of the item.

Some Keysight Used products cannot be customized. Use the contact option on the product page to check with the our eStore team.

What accessories are included?

Keysight Premium Used equipment typically comes with the same accessories and warranty as new products.

Can you include other accessories?

We currently only offer those accessories which are part of the listing. Other accessories can be purchased separately at extra cost with your purchase of a Keysight Used or Keysight Premium Used unit.

Please mention in the comment field which additional accessories or support you are interested in.

For seperate or post-purchase ordering, please contact your local Keysight office or Keysight Partner here. Or check our online store if available for your region here.

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Related Models

  • Like-new Condition
  • Updated Firmware
  • Full Calibration
  • New Accessories
  • Like-new Warranty
  • Customization possible

Learn more

  • Savings of up to 90%
  • Working Condition
  • Calibrated or Tested
  • 30-Day Right-of-Return
  • No Customization
  • Shipping to limited countries

Learn more

Do you need help?

Contact us with any question regarding your used Keysight equipment purchase!


Please call an expert at:

1 800 829-4444
Press #, then 2

7am – 5pm MT, Mon– Fri

or find your Local Keysight Contacts

Need Help?