Food safety at a glance! This set of 2 thermometers allow you to quickly look and confirm 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. Reduce food waste! Monitor freezer temperature to minimize freezer burn. Compact design won’t take up valuable space needed for food storage. Built-in hook simply hangs from a shelf inside. No installation needed. Measures approximately 5”L x 1”W x 1"D including hanger. Registers temperature in Fahrenheit scale. Great for home or travel! Very accurate and an excellent investment for food service environments, in a kitchen or secondary fridge/freezer at home or the office, in a cooler, or anywhere food and beverages are stored. Comes with two identical thermometers good for use in any fridge, freezer, or cooler. Product Dimensions: 6.2 × 1 × 1 inches .