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Keysight Trade‑In

E4990A, E4991B

Impedance analyzers

Maximum credit**


* To attain the full listed credit, the equipment being traded in must be fully operational. The percentages and USD amounts displayed are estimates of the credit that will be provided toward the purchase of new Keysight hardware. Actual percentages and amounts in local currency may vary based on the option configurations, currency exchange rates, and other factors that may cause the credit to change without notice. Due to the export laws of some countries (e.g. Russia) credit values may be significantly different than displayed. If you have a purchase agreement it may affect the Trade‑In credit - check with your sales representative.

Deal in brief

Receive a credit* of up to 25% when you trade eligible units from Agilent, HP, Wayne Kerr or NF toward a new Keysight E4990A or E4991B impedance analyzer.

Why change?

Get superior capabilities from improved features and specifications

E4990A impedance analyzer

  • Evaluate higher-quality devices with unparalleled accuracy:  industry-best 0.045% (typical) basic accuracy.
  • Select the most appropriate options with the lowest investment: choose 10, 20, 30 50 or 120 MHz with upgradeability.
  • Accelerate the development cycle with easy-to-use UI and PC connectivity, multi-channel/trace display and support for more than 20 test fixtures.

E4991B impedance analyzer

  • Develop higher-quality devices with 0.65% basic accuracy over a wide impedance range.
  • Select the most appropriate options with the lowest investment: choose 500 MHz, 1 GHz or 3 GHz frequency range.
  • Get a direct readout of permeability and permittivity with E4991B-002 material measurement firmware option.
  • Easily integrate an accurate, automated test system with the E4991B-007 temperature characteristic test kit.
  • Ensure accurate impedance measurements with probe stations with the E4991B-010 connection kit.

Keysight Trade‑In

"Are you new to our Trade‑In program? Don’t worry. Experts like me will help you have a positive Trade‑In experience. We’ll help you to receive major credits on new instruments and can even tailor a deal to fit your needs."

Steve Long

Keysight Trade‑In &
Premium Used