Describe: i5Chron is a shareware program that utilizes a Dallas Semiconductor's DS1921 ThermoChron iButton to log temperatures over extended periods of time. Results can be displayed on screen as 'Alarms' (periods out of a predetermined range), 'Histogram' or as a graph. Up to 2048 separate temperature measurements can be stored in the iButton's internal memory. Measurements can be taken in intervals from 1 to 255 minutes, giving a 'running time' of almost a year. Very fast download i5chron 09 e-mail.