A comfort-meter combines the advantages of a thermometer and a hygrometer by displaying both the current temperature and the relative humidity. The interplay between the temperature and the relative moisture content of the air strongly affects one's sense of wellbeing, not only aboard ship, but also at home in one´s own four walls. The right combination of the two factors determines the so-called "feel-good climate". As a rule of thumb: the higher the relative humidity, the lower the temperature needs to be for a person to feel comfortable. For example, people feel just as comfortable at 22.5° Celsius and 30% humidity as they do at 21° Celsius and 60% humidity. Wempe´s selection of comfort-meters includes a wide variety of these maritime "feel-good measuring devices".