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  1. #1
    Join Date
    Dec 2010
    Location
    Florida
    Posts
    34

    Testing Humidity

    I have a combo OAT/Humidity sensor on a wall of a BOX STORE
    How do you test the R/H sensor with a multi meter (can you) and find a conversion chart to compare it to the actual R/H

    This was on the Sensor
    Output 4 to 20 mA
    Temp Sensor 10K (I found a chart to convert this)
    Supply Voltage 24 VDC

    Range
    45F to 96F; 0 to 100% RH

  2. #2
    Join Date
    Dec 2006
    Location
    Goodyear, AZ
    Posts
    194
    You need a Sling Psychrometer or a Digital Sling Psychrometer

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