Cedar Sauna thermometer & Hygrometer (humidity) Unique Sauna Thermometer & Hygrometer A great gift idea! Check out the attention to detail! This hand crafted 100% cedar wooden sauna thermometer with Hydrometer is manufactured by Northern Lights Cedar Products, a world leader in cedar products for the outdoor lifestyles. This is a must for any sauna enthusiast! Controlling the sauna temperature is important for comfort and safety. All saunas should have a thermometer. The placement of the thermometer will effect its reading. Higher up will read hotter. We recommend the thermometer be placed at head level relative to seating height. Measures both Fahrenheit and Celsius. Measures - 10.25" wide x 5.5" tall x 1" thick. A Hygrometer, is a device that measures the relative humidity level in a sauna. This is very important as the humidity level in a sauna effects the overall perceived body temperature. If the sauna is 130 degrees, adding moisture will increase the perceived temperature inside the sauna to more than 130 degrees. Some bathers prefer a wet or high humidity level in a sauna. The moisture helps relieve dry skin and eases lung congestion.The Thermometer and Hygrometer are two very important measuring devices for any sauna. Every bather is different and this combination tool will ensure the sauna environment is right for you!