The Extech 445713 indoor / outdoor hygro-thermometer allows you to simultaneously read the humidity and temperature, indoors and outdoors. The outdoor sensor comes with a 35" cable and both can read between 10 and 99% relative humidity and between 14 and 140°F (-10 to 60°C). The Extech 445713 indoor / outdoor hygro-thermometer also features a max / min with reset function.
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