This versatile and portable thermo-hygrometer is easy to use. The pen reads temperature and humidity readings simultaneously. Reads humidity from 5 to 95% with up to a ±3% accuracy. Temperature range is from 14°F to 122°F (-10°C to 50°C) with 1°F accuracy. Includes min/max feature that recalls the minimum and maximum temperatures. Batteries and pocket clip included. Imported.