The Traceable® digital thermometer is said to be ideal for critical experimental, quality-control requirements and routine measurements. The unit reads Fahrenheit or Celsius at the push of a button and has expanded temperature ranges of -58.000°F to 302.000°F and -50.000°C to 150.000°C with a resolution of 0.001 degree and an accuracy of +0.2°C between 0.0°C to 100°C. The unit conforms to ITS-90, International Temperature Standards. An instant memory key recalls minimum and maximum readings over any time period. For ease in reading, a key changes the display to show one, two, or three significant numbers after the decimal point. Unique 50 memories capture the minimum and maximum temperatures every hour for 24 hours.