How do I change thermometer from celcius to farenheit

Asked by Martha on 09/23/2010 2  Answers

ManualsOnline posted an answer 14 years, 1 month ago

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4 Press and hold down the «start» button (IRT 4020) or the «I/O» button (IRT 4520). After about 3 seconds the display will show this sequence: «°C» / «SET» / «°F» / «SET» ...
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