Introducing our 8 Level Non-Reversible High Temperature Sensitive Labels, perfect for precise temperature monitoring from 37-65℃/99-149℉. Made from durable, chemically coated paper, these labels offer ±1°C accuracy and feature a permanent color change for easy identification. Ideal for diverse applications like manufacturing, food safety, and quality control. Customize colors, levels, and sizes to meet your needs. Welcome to visit our website!