* Set of 2 thermometers for refrigerator and freezer * High performance and very high precision * Clear and readable scale in degrees Celsius FM Professional offers you this set of 2 thermometers designed for refrigerators and freezers. Precise and high quality, they will allow you to perfectly control the temperatures of your refrigerator and freezer. FM Professional thermometers withstand temperatures ranging from -40°C to +40°C. They allow you to perfectly manage the cold chain of your food. Usage tips: For the refrigerator: Do not place your thermometer in the door of your refrigerator or in a drawer. Wait 8 hours, avoid opening the refrigerator during these 8 hours, then take the measurement. For the freezer: The optimal temperature of a freezer is between -18°C and -23°C. The lower the temperature, the better the products are preserved.