HSI’s sensor measures five different parameters every minute: TRO, Oxidation Reduction Potential-ORP, pH, Salinity, and Temperature. The sensor uses these measurements to compensate for changes detected in the water source. While the pH of seawater does not change much, in brackish or freshwater, the pH can change drastically. Even when used in freshwater, the sensor can use conductivity measurement to compensate for signal changes. In addition, the temperature sensor allows the sensor to make compensation for all the parameters over -2 ° to 35 °C. These readings enable the sensor to operate and deliver accurate readings in virtually any water condition that a ship may encounter.