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Sper Scientific Water Resistant Stopwatch 810012$30.00
Counts up to 24 hours in 1/100th second resolution for the first 30 minutes with a 1 second resolution thereafter. Split interval function. Also has a 12/24 hour alarm clock, calendar, LCD display, and an hourly chime option.
N.I.S.T. traceable certificate of compliance available. Downloads Instruction Manual Product Brochure Comparison Chart Comparison Chart