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My 3M Tempa-DOT Clinical Thermometers have been activated and have turned blue. What should I do?

April 26, 2017Activated BLUE clinical thermometers turned

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My 3M Tempa-DOT Clinical Thermometers have been activated and have turned blue. What should I do?

1 Answer

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This sometimes occurs if they have been exposed to temperatures >95 degrees. Place them in a freezer for at least one hour per box or 16 hours per case. Let stand at room temperature for one day. Dots may appear slightly off-color, but this does not affect the accuracy of the thermometers.