There are two types - the wet-bulb sling psychrometer and the dry-bulb psychrometer. Look up the definitions of these instruments for more details.
The closer the ambient and dew point temperatures get, the more moisture is in the air.
The Dew Point.
The SHAW SADP conforms to ASTMD5454
It tells you at what tempatures fog or dew on the grass will form.
fogfog
Low Dew Point is when the moisture in the air is dry. High Dew Point is when the moisture in the air is moist.
it is a front that is moist
The closer the ambient and dew point temperatures get, the more moisture is in the air.
you said so
The moisture decreases.
Moisture meters, under that name, are made for both wood and concrete. There are several designs of these. For measuring the moisture content of the air, an Hygrometer is one type of device. Another device is a Dew Point Meter, quite accurate.
Fresh moisture on grass is dew.=answered by Djahrra09=
The Dew Point.
The Dew Point is the temperature at which the air is at 100% Relative Humidity. If the temperature fall below the Dew Point, then there is more moisture in the air than it can hold, and water condenses in the form of dew, mist, rain, etc.
saturated
The SHAW SADP conforms to ASTMD5454
A dew point is the amount of moisture in the air so as the air cools water condenses and form clouds.