Patent ID: 8033716

Claim:
A temperature display and alarm device, comprising: a microprocessor; a serially addressed temperature sensor, said temperature sensor transmitting temperature data to said microprocessor; a display screen for displaying temperature data relayed from said microprocessor; a light source, said light source being activated by said microprocessor to indicate a plurality of temperature conditions; a light guide, said light guide receiving incident light from said light source and redirecting said light through said light guide in a direction exterior to said light source, said light guide having an exterior light-dispersive edge for receiving said redirected light from said light source and radially dispersing said light around said guide; and a cover, said cover engaging with said exterior edge of said light guide, said engagement leaving an air gap between a top surface of said light guide and a bottom surface of said cover, said cover further comprising a translucent, textured exterior edge for emitting dispersed light received from said exterior edge of said light guide.