Manual or automatic logarithmic sweep is possible. The start/stop sweep range can be arbitrarily set as required.

The voltage value has rough and fine setting buttons. A voltmeter with a resolution up to 0.001 V works with the rough and fine volume adjustment buttons to easily adjust to the required voltage. It is especially easy to set the precise low voltage value required by the receiver and headset.

The F0 value can be tested manually, and the frequency can be fine-tuned. The digital display frequency meter is supported by the frequency fine-tuning button, so the F0 value of the resonance frequency of the speaker can be accurately measured.