Features: Sauna Thermometers and Hygrometer, suitable for hotel, family, sauna indoor temperature and humidity measurement. The sauna hygrothermograph thermometers is suitable for monitoring the temperature and humidity of room, home saunas, hotels. The accurate temperature and humidity display will provide you with a relaxing and comfortable atmosphere. Dust resistant design will keep your thermometers clean and working without a hitch. Hygrothermograph is great to keep track of the moisture content and temperature inside your sauna room. Hygrothermograph is suitable for sauna temperature display, hotel or family sauna, can also be used as a general indoor temperature and humidity measurement. Specifications: Material: Plastic Diameter: 128mm/5.03inch Package Includes: 1pcs Thermometers note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you donot mind befores you order. 2.Due to the differences between different monitors, the picture may not reflect the actual color. Thanks for your understandings.