The Triplett Model IRT150 Stem Thermometer with IR has a built-in, fold out probe for measuring air, liquids and semi-solids from -40 to 446°F (-40 to 230°C). It can also measure non-contact IR Temperature from -4 to 536°F (-20 to 280°C) on surfaces that are too hot to touch or difficult to reach. In addition, it is HACCP approved and can be used for measuring food temperatures in HACCP designated safety zones and for home use. It features high/low alarms, a backlit display for use in poorly lit areas, and a built-in flashlight. The IRT150 is waterproof (IP65) and comes complete with 2 AAA batteries.