Temperature-sensitive stickers are special labels that change color based on the temperature they are exposed to. These stickers contain materials that react to heat, allowing users to easily monitor temperature changes. They are often used in various applications, such as food packaging, medical supplies, and electronics, to ensure items are stored or transported at safe temperatures. These stickers can provide visual cues, helping to prevent spoilage or damage. For example, a food product might have a temperature-sensitive sticker that indicates if it has been kept at the right temperature during shipping. This technology enhances safety and quality control in many industries.