Klein Tools ET05 Digital Pocket Thermometer with LCD Display is a rugged, portable, and lightweight thermometer designed to measure surface temperature, liquid temperature, and air temperature from -40°F to 482°F (-40°C to 250°C). The Klein ET05 features a backlit display, automatic shut-off, a 3-inch stainless steel probe with protective sheath that can attach to the back in order to double the reach, a pocket clip for quick and easy retrieval, and more.