Anticipate cold weather with a quick glance out the window at this digital outdoor window thermometer. Made by Chaney AcuRite, the thermometer sticks to any surface with a large, rubber suction on its metallic mount. The thermometer?s digital display conveys the temperature in easy-to-read 3/4-inch-high numerals. To offer illumination, a translucent pale green LCD frame borders the screen. The thermometer measures temperatures ranging from -4 to +158 degrees Fahrenheit to the tenth of a degree for precision; Celsius readings are not available with this item. Weather-resistant, the thermometer provides an on/off switch on its base underneath a weather-proof rubber seal. For the best results, install the thermometer out of direct sunlight. Moisten the suction before applying it to a clean window pane to ensure a strong bond. While the thermometer?s screen is not backlit, by painting or covering its backside white, the light from the frame may allow nighttime reading. A pre-installed L1154 cell battery powers the thermometer and can be replaced using a small Phillips screwdriver. Made in China, the thermometer is covered by a limited one-year warranty. The thermometer measures 2 inches wide by 1/2 inch deep by 3-1/4 inches high and weighs 2 pounds upon shipping.