It gives you a wide temperature range and highly accurate readings from -58 to 302 F (+-2); from -50 to 150C (+-1). Switch selects Celsius or Fahrenheit. Sampling time is just one second, HOLD button retains reading in memory. Easy to read display can be read even in direct sunlight. Durable case includes a cover to protect the probe Robinair's new digital thermometer gives you full-feature capabilities in a case that's small enough to fit in your shirt pocket!