The Keysight E4990A Impedance Analyzer with a frequency range of 20Hz to 120 Mhz has 0.045% accuracy/
This unit comes in five different frequency options please specify the option you need.
E4990A-010 20 Hz to 10 MHz
E4990A-020 20 Hz to 20 MHz
E4990A-030 20 Hz to 30 MHz
E4990A-050 20 Hz to 50 MHz
E4990A-120 20 Hz to 120 MHz