The Extech EA11A-NIST is an EasyView Type K Single Input Thermometer. This Hand Held Thermometer has a temperature range (Type K) from -58 to 1999°F (-50 to 1300°C). It features a Dual Display LCD, Manually store/recall up to 150 readings and Mode Min/Max/Average functions. It includes NIST Certification. The Extech EA11A thermocouple thermometer is a Type K, single input thermometer that features a compact and rugged design and displays all data using a high contrast large, LCD display. The Extech EA11A thermocouple thermometer has a range from -58° to 1999°F (-50° to 1300°C) with an accuracy of ±0.3% of the reading and a resolution of 0.1° making it a versatile solution to your temperature measurement needs.Other features of the Type K single input Extech EA11A thermocouple thermometer include the ability to manually store and recall up to 150 readings and a data hold function that freezes the reading on your display. You can record MAX / MIN / AVG readings for later recall.The Type K single input Extech EA11A thermocouple thermometer comes complete with built-in stand, protective holster, Type K bead wire temperature probe (-4 to 482°F / -20 to 250°C), and 6 AAA batteries.