The Ti-plus multi-function instrument features an easy to read arrow display showing all ranges of dangerous heat conditions. Audible warning sounds before heat index reaches critical levels. Danger icon is always present during dangerous conditions. Other functions include: accurate display of actual temperature in both Fahrenheit and Celsius, as well as relative humidity and heat index. New type automatic operation makes other models obsolete. No water, twirling or charts are necessary. Critical information is stored in memory for 24 hours and can be re-displayed.

The Ti-plus also functions as a countdown timer, stopwatch and alarm.