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The Extech 445703 Big Digit Humidity and Temperature Indicator is a low cost meter for bench or wall mounting.
Humidity range 10 to 99%RH
Basic RH accuracy ± 5% (25 to 80%)
Temperature range 14 to 140°F (-10 to 60°C)
Basic Temperature Accuracy +/-1.8F/1°C (14 to 122°F)
Dimensions 4.3 x 3.9 x 0.78”(109 x 99 x 20mm)
Weight 6oz (169g)
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To maintain proper temperature and humidity conditions and to record extremes during the day