"Digital thermometer hygrometer with comfort level colour display for a healthy room climate. Maximum and Minimum ( 24 Hour Auto Reset ) Function with Permanent Display. Temperature in either Centigrade (°C) or Fahrenheit (°F). Wall mounting or Table standing. Product Size (Dimensions): 93 x 93 x 20 mm / 9.3 x 9.3 x 2.0 cm / 3.7 x 3.7 x 0.75 inches Clear Display with high-contrast , an excellent read. Indoor Temperature and Humidity Display, Popular for use at Home or Work, Perfect for School class rooms, Children bedrooms, Bathrooms, Wine cellars , Store rooms, Green houses, Indoor Sports Halls, Hospital etc. where consistently accurate Temperature or Humidity readings needed. "