The Extech TM100 Thermometer, Type J/K with one input has a temperature range of -200°C to 1372°C (-328°F to 2501°F) for Type K measurements and -210°C to 1100°C (-346°F to 2012°F) for Type J measurements. It has a large backlit LCD display with temperature readings in °C, °F or Kelvin. The scope of delivery includes a type K bead wire temperature probe and three AAA batteries (1.5 V).