Perfect for any home and any décor, this compact indoor thermometer & hygrometer measures just 3.4" x 3.3" x 0.5". It’s perfect for wall-mounting, freestanding on a table or desk, or attach it to your refrigerator. A large LCD displays the indoor temperature & humidity. The Max/Min daily temperature and humidity record data will keep you well informed. Easily switch the temperature display between Fahrenheit or Celsius. This compact thermometer is a functional and stylish gadget for your home or office. Completely wireless and powered by just 1 AAA battery (not included).