Accurate temperature display Equipped with high-precision technology, this outdoor/indoor thermometer is ideal for measuring temperature fluctuations in your environment; and the data measurement results are constantly updated as the environment changes, so you can know exactly where you are no matter where you go temperature. Easy to set: There are only three buttons "+", "-" and "SET" on the back of this travel clock, and a detailed instruction manual is attached. Follow the instruction manual with the three buttons to operate step by step, and you can quickly complete all the things you want set up. Easy to read: Although this digital travel clock has a small size and a small screen, the digital fonts on the display are large enough, and the displayed content can be seen clearly from a long distance and from all sides. It is not burdensome for the elderly to use it. You don t need to look at the time closely.