BLUESTAR, IN

ICEALERT

self-contained, temperature sensing devices for sensing ambient air temperature over a pre-selected temperature range including the freezing temperatures and mountable adjacent a surface for monitoring the temperature thereat and signalling by means of reflective colors the sensed temperatures by displaying one of two colors or a mixture of the two colors and thereby signals either freezing temperatures, above freezing temperatures, or transition temperatures, between freezing and above freezing;ICE ALERT;