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Digital Stopwatch by Science Photo Library
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Scientific Stopwatches
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Pocket Timer/Stopwatch
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Fastime 3 Scientific Stopwatch
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Fastime 28L Scientific Stopwatch
Stopclocks & Stopwatches for Science, perfect for Key Stage 3, GCSE and A Level Students
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Stopwatch, Mechanical, Isolab – HCS Scientific & Chemical Pte Ltd
