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Extech Big Digit Thermohygrometer with Dew Point, Alarm, and Remote Probe: Amazon.com: Industrial & Scientific
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Extech - -148 to 2,372°F, 10 to 95% Humidity Range, Thermo-Hygrometer, Anemometer and Light Meter - 81949703 - MSC Industrial Supply
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Calibration of Thermo-Hygrometer (Temperature and Humidity Meter) -Single Point Method - Calibration Awareness
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