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Instruments which measure Humidity Ratio (Grains)

This weight of water is expressed either in pounds of water per pound of dry air or in grains of water per pound of dry air, and is called the Specific Humidity, or Humidity Ratio. A grain of water is approximately one drop, and there are 7,000 grains of water to one pound of water.

  • Kestrel 5200 Professional Environmental Meter

    Kestrel
    Original price $315.00 USD - Original price $385.00 USD
    Original price $315.00 USD - Original price $385.00 USD
    Original price $315.00 USD
    $269.00 USD - $329.00 USD
    $269.00 USD - $329.00 USD
    Current price $269.00 USD
    Only 15 left!

    Pouring concrete, balancing HVAC systems, or monitoring job site conditions? Let the Kestrel 5200 takes the calculations and guesswork out of your ...

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  • Kestrel 5200 Concrete Pro Jobsite Weather Kit

    Kestrel
    Original price $541.00 USD
    Original price $541.00 USD - Original price $541.00 USD
    Original price $541.00 USD
    Current price $449.00 USD
    $449.00 USD - $449.00 USD
    Current price $449.00 USD
    In stock

    Prevent costly plastic shrinkage cracking with this portable jobsite weather monitoring kit! The Kestrel Concrete Pro Jobsite Weather Kit includes ...

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