A step above the standard pocket thermometer the TM50 is packed full of features, including a user selectable temperature alarm, a countdown timer, Min/Max, °F/°C selectable and memory functions. The unit incorporates a highly accurate stainless steel 96mm puncture probe with a 4ft/122cm cord. Temperature range is -58°to 500°F / -50°to 260°C. The TM50 operates on a single AAA alkaline battery with 25 hours of battery life and a low battery indicator.