A Dew Point Sensor is a device that measures the temperature at which air becomes saturated with moisture, leading to condensation. This measurement is crucial in various applications, including HVAC systems, weather forecasting, and industrial processes, as it helps monitor humidity levels and prevent issues like mold growth or equipment corrosion. These sensors typically use either capacitive or resistive technology to determine the dew point. By providing accurate readings, a dew point sensor aids in maintaining optimal conditions for comfort and safety in environments such as homes, offices, and manufacturing facilities.