by Fieldpiece
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Typically Stock at Factory, Ships within 3-5 Business Days

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The Fieldpiece model ARH4 Digital Sling Psychomotor Accessory Head measures both relative humidity and ambient air temperature. It calculates dew point and wet bulb. It's great for calculating target superheat as well as logging -Percent RH, temp, WB or DP over time. The head converts -Percent RH, ambient temperature, dew point temperature, and wet bulb temperature to a voltage at a rate of 1 -Percent RH or Degree to 1mVDC and your reading is displayed on your meter. The ARH4 snaps directly onto Fieldpiece stick meters, data logger, electronic handles and adapters.