The Keysight 4192A LF impedance analyzer performs both network analysis and impedance analysis. Analysis for telecommunication filters audio and video electronic circuits, and basic electronic components. The Keysight 4192A is also able to test floating and grounded devices.
From www.keysight.com (formerly Agilent): This item is considered obsolete by Keysight as well as authorized distributor
This unit originally branded as Hewlett Packard 4192A LF Impedance Analyzer,
is available for sale.
FEATURES:
5 Hz to 13 MHz variable frequency
Swept Measurement Capability
Gain-phase measurements: amplitude, phase, group delay
Floating or grounded devices
GPIB
