Japanese company Design Factory which sold various convenient goods developed cute heat disorder precaution thermometer with Japan Weather Association. It can "talk".
It measures temperature and the humidity every 10 minutes and notifies users of the environmental risk including the heat stroke with sounds and LED lights.
When it is high-risk, it notify users of it in sounds of the "severe caution" or "danger" and talk the advice of measures in random. The volume is selectable from three kinds. Japan Weather Association original calculation method is used for this, and the design source of this is a PR character of the heat stroke prevention project that they promote.
via https://www.designfactory.co.jp/info/20150416-1/ (Japanese)