2019-11-5

上周四晚上是halloween, 儿子冒着大雨出去要糖，收获满满回来，第二天就开始生病了。先是在学校吐了，然后接回来后就发烧。手忙脚乱的时候发现体温计不知道怎么显示的是F的单位了。（后来分析肯定是他按的时间太长了，无意间更改了单位了）

用了下万能的谷歌，找到了设置方法。设置如下：

就是在关机状态时候长按八秒，看到显示C的时候再按一下就可以了。

 you can switch back and forth between Celsius and Fahrenheit. Press start button for 8 seconds until it switches between the two settings. 
Changing the temperature scale
Your Braun ThermoScan is delivered to you with the Celsius (°C) temperature scale activated. If you wish to switch to Fahrenheit (°F), proceed as follows:
Make sure the thermometer is turned off. Press and hold down the «start» button. After about 8 seconds the display will show this sequence: «°C» / «°F» /...
Release the «start» button when «°F» is shown. There will be a short beep to confirm the new setting, the thermometer then turns off automatically.
OR Convert 68 degrees Fahrenheit to degrees Celsius:
T(°C) = (68°F - 32) × 5/9 = 20 °C
98F = 36.6C 
98.6F = 37C