Extech's 365515 is a digital stopwatch and clock. This stopwatch features a 12 or 24 hour clock format and programmable alarm with hourly chime. The backlight can be used for viewing at night or in dimly lit areas and turns off automatically after four seconds. Complete with LR44 battery and 39" (1m) snap-away neck strap.
1/100th second resolution for 30 minutes
Timing capacity: 23hrs, 59mins, and 59.99secs; Basic accuracy: ±3 seconds/day