Description: The Agilent HP 4193A is a reconditioned Vector Impedance Meter that measures impedance magnitude from 10 mohms to 120 kohms and phase from -180.0º to +180.0º.

Product Specs:
Internal oscillator provides test signals from 400kHz to 110MHz. 
Test signal is constant current between 10 µA, depending on impedance range (10 ohms-100 kohms, 5 ranges).

Other Info:
The HP Agilent 4193A features test components in circuit and out-of-circuit and standard HP-IB and analog outputs. 
Other features include auto, hold, manual range control and a 3 1/2-digit display.