The CDN EFG120 Refrigerator/Freezer Thermometer accurately measures temperatures from -40 to +120°F (-40 to +50°C). Its compact display measures 1/2"W x 2-1/4"H (1.27 x 5.7cm) and features a color-coded scale for easy reading. The non-mercuric column ensures safety, while the integrated temperature guide provides quick reference. Designed for versatility, it can be hung or secured with a suction cup. Constructed from durable ABS plastic, this thermometer is NSF certified, making it a reliable choice for monitoring your refrigeration needs.