CONSTRUCTION: This instant read meat temperature thermometer features a 1-inch dial that is magnified by convex plastic lens to enhance viewing UNIQUE FEATURE: The storage sleeve features a custom calibration wrench and provides protective storage when not in use TEMPERATURE RANGE: 20 to 220 degrees Fahrenheit NSF CREDIBILITY: Product listed with the National Sanitation Foundation to meet higher quality standards for material, safety, design, construction and trusted product performance IMPORTANT: Thermometer will be hot after use. Use potholders or oven mitts when handling hot thermometer EASY TO CLEAN: Hand wash only; do not immerse in water or put in dishwasher; for best results, wipe with a damp cloth and dry thoroughly