La Crosse Technology 306-605 Solar Window Outdoor Thermometer with Nighttime Illumination and MIN/MAX Records with Auto-Reset;

306-605 Solar Window thermometer displays your current Outdoor temperature, as well as giving you Min/Max values. Solar panel recharges automatic backlight. Automatic resets the high & low records in morning & in afternoon. Displays in either °F or °C. Requires 1 AAA alkaline battery (included) & 1 AAA rechargeable battery (included.)