【Clear LCD Screen】The segment LCD screen shows readings clearly with ultra-low power consumption, very easy to read. 【Accurate Measurements】The Swiss-made built-in sensor is sensitive, fast responding and accurate. The measurement range of temperature is 14 ~ 122°F (-9.9 ~ 50°C), and 0% ~ 99.9%RH for humidity (non-condensation environment). You can switch between Fahrenheit and Celsius by pressing the button on the back of the product. 【Multiple mounting options】1) Attach it to a wall with the supplied wall sticker; 2) Place it on a desktop with the supplied stand; 3) Attach it on an iron surface(it has a built-in magnet)—e.g., a refrigerator door. 【Long Battery Life】The product has 8 ~ 12 months of battery life in normal indoor environments (data provided by Qingping lab). There is one supplied CR2430 button cell in the package. 【Simple Design】The small and exquisite thermo-hygrometer can fit in your living room, bedroom, office, greenhouse, or anywhere you want, with its simple and modern appearance. * Please be aware of that the product on this page has no bluetooth feature, you can switch versions on "Style" section, or visit Qingping store to find out more choices.