Indoor and outdoor thermometer: the round outdoor thermometer with a diameter of . 20 cm is a reliable measurement for temperature and hygrometer (humidity measurement) for your outdoor area. Celsius & Fahrenheit: With this garden hygrometer you can digitally display the temperature of Celsius and Fahrenheit at the same time. Real glass lens: This real glass lens for the indoor thermometer is accurate between -40 and 120°F / -40 and 50° C and suitable for all climate zones. Easy to read: The outdoor thermometer is decorative and displays the temperature from a distance with a strong black graphic. Automatically calibrate: this weather thermometer provides precise thermometer coil for accurate readings. The thermometer is calibrated automatically, only needs to be placed in a fixed place. After 2 hours, the pointer automatically adjusts to the localtemperature., Weight: 1.1464037624 pounds, Manufacturer: Oewwthy