The Extech TM100 Type J/K Single Input Thermometer has a wide temperature range of -328 to 2501?F/-200 to 1372?C for type k and -346 to 2012?F / -210 to 1100?C for type j measurements. It has a high 0.1?/1? resolution and a large backlit LCD display with readouts in ?F, ?C, or Kelvin. The data hold function freezes the reading on the display and the screen displays the Max/Min/Avg. Readings capture a relative time stamp. Also, the offset key is used for zero function to make relative measurements. Auto power off with a disable feature.