Product Package Content: 1 * Indoor Analog Hygrometer Thermometer Very Reliable - Thermometer-Hygrometer with reliable measurement values to control air humidity and temperature for comfortable and healthy indoor climate - Especially suitable for use in living rooms and offices (not for the sauna). Ready to Use - The device is factory calibrated and ready to use. Calibration screws are available for fine adjustment. High Quality - The entire case and removable bracket are made of high-quality stainless steel, and the aluminum dial is carefully crafted—stainless, sturdy, durable, decorative, and elegant. Convenient Display - Humidity and temperature are displayed analogously and are easily readable on the large 12 cm dial. Comfort zones are marked by color, indicating when ventilation or increased air humidity is needed. Durable - Unlike digital devices, this hygrometer operates without batteries or liquids, helping protect the environment and reducing additional costs.