Ultrak 410 Simple Event Timer Stopwatch With Silent Operation

Easy to Use Event Timer! Ideal for students and volunteers. Measures to 10 hours with 1/100 second resolution, silent operation for classroom and testing purposes. Water resistant, five-year lithium battery and five-year warranty. $ 16.31 Customer Reviews 47 of 48 people found the following review helpful Does What I Need, February 21, 2008 By  J.