Dew Point - DAVIS Weather Monitor II Owner's Manual

D P
EW OINT
Dew point is a measure of the absolute amount of water vapor in the air
expressed as a temperature reading. The temperature reading represents the
temperature at which water condenses from the air. If temperature and dew
point are the same, the result will be fog and/or dew. Dew point can be dis-
played in either ˚F or ˚C, in increments of 1˚.
The Weather Monitor II also records high and low dew points, and has a spe-
cial dew point alarm to alert you when temperature comes within 2˚F (1˚C) of

dew point.

Because dew point is dependent on water vapor (humidity), if you do not have
the External Temperature/Humidity Sensor, all dew point displays will appear
with a series of dashes in place of a dew point reading.
See the booklet included with the External Temperature/Humidity Sensor for
instructions on displaying dew point.
Weather Monitor II
Dew Point
Page 29