First-rate in all respects, this instant-read digital thermometer is ideal for household cooks. Because it's digital, you don't need to insert it deeply for an accurate reading--just 1 inch will do--and the reading is updated every 2 seconds. Its extra-wide temperature range is -58 to 500 degrees F (-50 to 260 degrees C), with a switch to select Fahrenheit or Celsius. Buttons recall maximum/minimum temperatures, and the memory persists even when the thermometer is turned off. It features the new FDA recommended 1.5mm step-down probe tip. The Safe-T-Guard sleeve incorporates a non toxic chemical compound that inhibits the growth of pathogens which minimizes cross contamination.The thermometer operates on a replaceable watch battery (included), and can be recalibrated for long-life precision.