air humidifier thermometer sauna humidity temperature meter indoor hygrometer double dial wall button metals measurement

100% new and characteristics: 1. specially designed for sauna, simultaneously measuring temperature and humidity in this one meter with two plates. 2. approves beautiful and aluminum materials, offers you sustainable and heavy duty with experience. three. with back-up design, you can hang via a spot on the wall, convenient for you to also hang. four. watertight and no need to worry that it will easily not work in a sauna, which is wet conditions. five. temperature