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Extech stopwatches offer a great value thanks to their great selection of features and convenient functions. Available with optional NIST certification and certified to ISO 9001:2000 standards, these stopwatches guarantee accurate measurements with a ruggedness and price that's hard to beat.

Extech 365510 Digital Stopwatch w/Calendar and Alarm

Extech HW30 HeatWatch Humidity/Temperature Stopwatch

Extech N.I.S.T. Certificate for any Stopwatch

Extech Stopwatch Data Sheets and User Manual