Heat warning safety device using fiber optic cables

A heat alert safety device for warning individuals that a surface of an object is temperature excessive, comprising

• a light source that generates a light beam,
• a light guide, said light guide connected at a first end of said light guide to the light source and oriented so that the light guide is directly in a path of the light beam, said light guide transmitting the light beam from the light source beginning from the first end to the second end of said light guide, the second end of said light guide shining the light beam out of the light guide,
• a predetermined symbol adjacent the second end of the light guide, the symbol readily visible only when illuminated to an observer who can also readily see the surface, said symbol communicating that the surface is temperature excessive,
• a controller controlling the light source so that whenever a specified surface temperature is reached, the symbol is illuminated and remains illuminated as long as said specified surface temperature is maintained, and
• heat sensor adjacent the surface and connected to the controller for ascertaining a surface temperature and communicating the surface temperature to the controller.