KEYSIGHT E4990A Impedance Analyzer
The E4990A Impedance Analyzer with a frequency range of 20 Hz to 120 MHz, industry best 0.045% (typ.) basic accuracy over wide impedance range, with 40 V built-in DC bias source, for component, semiconductor and materials measurement.
KEYSIGHT E4991B Impedance Analyzer
The E4991B Impedance Analyzer with a frequency range of 1 MHz to 3 GHz, 0.65% basic accuracy over wide impedance range, material measurement options for temperature characteristics analysis and direct read function of permittivity and permeability.