Save food and energy with our Refrigerator Temperature Gauge-card. Simply place or hang in the refrigerator and read the thermo-plastic strip to determine if an adjustment needs to be made. You can customize this item with your company logo, artwork, or message (standard colors: red, green, blue, black, purple, orange, brown, gold). This refrigerator gauge makes a great addition to any conservation kit. By monitoring fridge temperatures, you can prevent food from spoiling. Adhesive strip on back.