Extech EA10-NIST EasyView Dual K Thermometer with NIST Certificate; Temperature range: -200 to 1999 degrees fahrenheit with 0.1 degrees/1 degrees resolution; Basic Type K Dual input; Compact and rugged design features large backlit display; Displays [T1 plus T2] or [T1-T2 plus T1] or [T1-T2 plus T2]; Selectable units of degrees fahrenheit, degrees celcius, K (Kelvin); UPC: 793950411216 (EXTECHEA10NIST EXTECH EA10-NIST THERMOMETER); Wide temperature range with 0.1 degrees/1 degrees resolution; Timer function displays elapsed time plus the time when MIN and MAX readings are taken; OFFSET key used for zero function to make relative measurements; Data Hold function freezes reading on display; Auto Power off to save battery life; Low battery and overrange indication; Records Max/Min readings for later recall; Complete with built-in stand, protective holster, two Type K bead wire temperature probes (-4 to 482 degrees fahrenheit), and 6 AAA batteries; Dimensions: 6 x 2.8 x 1.5 in.; Weight: 2 pounds