The Cariitti sauna hygrometer is designed to determine the humidity level inside the steam room, allowing for quick adjustments according to personal preferences. It features an easy-to-read scale made of stainless steel, which is resistant to corrosion in the high humidity conditions of a steam room. The display is illuminated by a single fiber, 2-6 millimeters in diameter, which is purchased separately. The delivery set includes three stainless steel mounting screws. It should be noted that for successful installation, the niche depth must be 40 millimeters.