Features:This meter can measure temperature and humidity at the same time.2 temperature units are optional: Celsius(°C) or Fahrenheit(°F).It also can record the maximum and minimum value.Pen shaped meter with clip， convenient to carry.Powered by a battery(not included)， low consumption.Specifications:Temperature Range: 0 ~ 50°C / 32 ~ 122°FHumidity Range:20-95% RH in 15-50 °C25-95% RH in 25-50 °C30-95% RH in 0-50 °CPower Supply: 1 * 1.5V AAA Battery(not included)Item Size: 13.5 * 2.5 * 1.5cm / 5.3 * 1 * 0.6inItem Weight: 26g / 0.9ozPackage Size: 18 * 7 * 1.5cm / 7.1 * 2.8 * 0.6inPackage Weight: 42g / 1.5ozPackage List:1 * Temperature and Humidity Meter1 * User Manual