- Designed for remote weather stations and ocean data buoys. - DC voltage operation, low power consumption and a warm up time of only 0.25 sec. - Proven track record for reliability and accuracy with thousands of units in daily use under diverse climatic conditions around the world. - Rotronic Hygromer™ Sensor Technology ensure excellent performance over the full range of conditions and high resistance to contaminants. - Advanced filter technology allows sensors to operate in coastal and marine environments. - Available with natural aspiration or motor aspirated radiation shields. - Field calibration with certified humidity standards.