ULTRAK 830 Heat Index Stopwatch

? Accurately calculates temperature, humidity, heat index and dew point
? 30 dual split recallable memory
? Measures to 10 hours with 1/100 second resolution
? Presettable countdown timer with auto repeat function
? Time, calendar and alarm
? LED backlight
? Solar powered with back-up lithium battery
? Water resistant
? Five-year warranty provide by manufacturer