Economical way to monitor indoor or outdoor temperature and humidity | Measures temperatures as low as 14° Fahrenheit and up to +158° Fahrenheit (-10 to +70 degrees Celsius) * Display features one-inch tall digital numbers | Powered by 1 x AAA battery (not included) | Desktop or wall hanging * Displays temperature, humidity and time simulatenously. If used outdoors, please place under protected area such as a covered porch * Package Contents: 1 X LCD Display Temperature and Humidity Meter * HDE® is a registered trademark and is the only authorized seller of HDE branded products