Is it dry, humid, hot or cold? Selina provides the answer. The hygrometer is equipped with state-of-the-art technology and measures air humidity and temperature precisely. Thus, monitoring indoor humidity and temperature will give you an idea of what home appliance required in your room. Selina is sleek and elegant and fits harmoniously into any living environment., , Specifications:, Accurately measures humidity and temperature, Accurate sensor and measurement, 4mm slim housing, Battery-operated, 1x type CR2016, 2 batteries included, Temperature range: -10C +50C ( 1C), Humidity range: 20% 98% ( 3%).