Count Up/Count Down Timer 100 Hr, Sper Scientific
Counts up or down for 100 hours in intervals of 1 second
In count down mode unique feature tells you how much time has elapsed after the alarm sounds. Memory allows repeat of just completed cycle. Alarm clock mode. Has a built-in stand, pocket clip, and magnet. A button cell battery is included.
Certifications: N.I.S.T. traceable certificate of compliance for 97035-862.
Ordering information: 5 yr. warranty.