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VWR* Digital Key Chain Timer
Handy timer holds keys or hooks onto a lab coat buttonhole. Counts down in minute increments from 20 hours to 1 minute. When zero is reached an alarm sounds. Counts up from 1 second to 20 minutes and then repeats itself. Has a time-out feature in both modes.
Big, four-digit 0.8cm ( 1/3") high LCD is easy to read. Dimensions: 3.8Lx1.9W cm (1.5x0.75"). Rugged, chemical-resistant ABS case.
A serial numbered certificate is provided from an ISO 17025 calibration laboratory accredited by A2LA to indicate instrument traceability to standards provided by the National Institute of Standards and Technology.
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