The CDN FG80 Refrigerator/Freezer Thermometer accurately measures temperatures from -40 to +80°F (-40 to +27°C). It features a color-coded scale for easy target range indication and includes a temperature guide directly on the thermometer for quick reference. The non-mercuric column ensures safety, while the shatterproof polycarbonate case provides durability. Designed for versatility, it can be easily stood or hung for optimal placement. This thermometer is NSF certified, making it a reliable choice for both home and commercial use.