Comparator is used to process high frequency signals. The analog signal input is applied to SMA connector. The comparative level can be set up by a SMA connector as well. Digital output by SATA connector is differential.
The usage of the module
Conductivity measurements (e.g. for testing a water quality).
Measurement of humidity in soil / bulk materials using a TDR method. It does not suffer from electrolytic phenomena.
Water level measurement (using coaxial cable with chambers, through which the water flows into the dielectric).