The HD500 Psychrometer with Infrared Thermometer has three functions: humidity meter, type K thermometer, and infrared thermometer. The HD500 has a big triple LCD backlit display, an integrated USB connector, minimum/maximum, data hold, and auto power off functions. Built-in infrared thermometer for non-contact temperature measuring up to 932°F (500°C). Includes a three-year warranty, Windows-compatible software with USB connector, Type K bead wire probe, carrying case, and 9-volt battery.