Taylor Precision Products Pro Freezer/Refrigerator Thermometer Maintain proper storage temperatures in the refrigerator or freezer with this professional-grade dial thermometer. Mount or hang the thermometer with the two-way hanger stand, or simply set it on a shelf. Measuring from -30 to 70 degrees Fahrenheit, this thermometer displays temperatures on an easy-to-read 3-inch dial with a safe temperature zone guide. The red pointer is easily seen even in frosty freezers and is protected by a glass lens. Built with durable stainless steel components, the thermometer is NSF listed for food safety.