DAVIS Temperatur/Humidity Sensor for GroWeather, EnviroMonitor, & Weather Monitor - Manual (Page 10)

Page 10 Standard & Industrial External Temperature/Humidity Sensor
To Clear High and Low Dew Points
1. Press DEW.
2. Press RECL once or twice to select the high or low dew point, as desired.
3. Press CLEAR and hold it down.
The value will flash several times. When the value stops flashing it means
that the high/low has been cleared. It is not uncommon for another high/
low reading to appear almost immediately. This is simply because the
Weather Monitor II is constantly in the process of recording new highs and
lows.
4. Press any key to exit.
High and low dew points are independent of each other. Clearing the high
dew point does not clear the low dew point, and clearing the low dew
point does not clear the high dew point. You must clear each dew point
individually.
To Set the Dew Point Alarm
1. Press DEW.
2. Press ALARM.
3. Press ENTER.
The display will show 2˚F (1˚C) which is the only possible setting for the
dew point alarm.
Dew point alarm
4. Press any key to exit.
The alarm sounds if dew point and temperature are within 2˚F (1˚C).