Headwind Consumer EZ Read Dial Indoor Outdoor Thermometer Large Readout 12.5 in. The brilliant white background is designed to enhance the black letters offering more visibility and simplicity. The numbers are placed on the thermometer with a special UV resistance to keep their color and brilliance against outdoor elements. Temperature readings are in Fahrenheit and Celsius ranging from -60 degrees F to 120 degrees F to ensure your temperature range needs are met. The bold numbers are not only extra-large but easily read from a distance.. The thermometer easily mounts with a built-in bracket on any wall fence or patio for quick installation.