WATERPROOF DESIGN: This thermometer is designed to get wet without ruining the product. It takes splashes without damage, but please note that the unit should not be submersed in waterRECALIBRATABLE: Using the sleeve the thermometer can be recalibrated for precise measurementsEASY TO USE, EASY TO READ: The 0.8 inches display is easily seen from all anglesHIGHLY ACCURATE: Thermometer can measure temperatures ranging from -40 to 450F and -40 to 230CNSF: The thermometer is NSF (National Sanitation Foundation) certified so it complies with all required standards for the quality, durability and cleanability of consumer productsIMPORTANT: Thermometer will be hot after use. Use potholders or oven mitts when handling hot thermometerBATTERY INCLUDED: One (1) LR44 battery includedONE (1) YEAR LIMITED WARRANTY EXCLUDES BATTERIES