Accurate and reliable, these sensors are suitable for continuous meteorological measurements even in severe climatic conditions and in the presence of strong thermal and hygrometric variations. These sensors must be housed in an antiradiant shield with natural or forced ventilation. Models with Pt100 output for temperature and 0 ÷ 1 Vdc for relative humidity output 0 ÷ 1 Vdc for both temperature and relative humidity are available. A model is available that is designed for continuous conditions of high temperature and relative humidity typical of tropical climates.