Firesports Chronograph Digital Timer Stopwatch Sport Counter Odometer Watch Chronograph Digital stopwatches timer show hour, minute, second , day, month, and day of the week. 1/100 second Chronograph up to 23 hours, 59 minutes, 59 seconds Working temperature: -5C - +50C it can select 12 or 24 hour user with Chronograph Stopwatch Timer Stopwatches alarm with 4 minutes snooze