Don’t risk unsafe food temperatures! This set of 2 easy-to-use hanging thermometers confirm at a glance if food is being kept at a safe temperature. Blue (freezer) and pink (refrigerator) zones indicate appropriate temperatures for freezing or refrigeration; red warning zone alerts you to unsafe food temperatures. Monitoring freezer temperature can also reduce food waste by helping minimize freezer burn. The compact hanging design is simple to install and move, and won’t take up valuable space needed for food storage. Great for home or travel, the built-in hook simply hangs from a shelf inside and the slim profile fits easily in a compact space. These accurate units are perfect for your kitchen or secondary basement refrigerator/freezer, for an office kitchen, in a cooler when traveling or camping, or in any food service environment. Thermometer measures approximately 5”L x 1”W including hanger. Made of polystyrene and glass. Registers temperature in Fahrenheit scale. Set comes with two (2) thermometers.