Voltage (V): In the range of 0 – 285 V AC, 1% sensitivity,
Hertz (Hz): 0-100 Hz. It allows you to measure with an accuracy of 1 Hz in the range.
It is not a physical sensor. BS-6000 Series V models have 3 as standard.
As you can monitor your energy assets, you can be informed in case of instantaneous fluctuations (peak).