Fundamental timing suitable for most classroom and recreational activities. Times single events. Unlimited split times. First and second place finish times. 1/100 second resolution to 30 minutes. Time-out (pause) timing. Times up to 24 hours. Includes time, calendar, and alarm. 2" dia. Available in bright Kaleid-a-Colorï¾™ colors. Two-year battery life. One-year warranty.