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This stopwatch contains the following features: 1/100sec precision with lap counter (for first 30 minutes) calendar and time (12/24 hour format) daily alarm and hourly chime snooze large screen display water resistant structure and requires an LR44 1.5v battery or equivalent. Additional batteries sold separately (www.ypo.co.uk/product/detail/curriculum/science/480564480564 www.ypo.co.uk/product/detail/curriculum/science/306581306581).
