6.5.4 Lightning Icon
The lightning icon
and humidity conditions may be possible for lightning storms to form in the area.
6.5.5 PM2.5 Sensor (optional)
An optional PM2.5 sensor is available for the WS-2000. The display shows the current PM2.5
measurement, and the 24-hour running average, which is a better indication of the accumulative effect
of particulates on overall health.
The display features a color-coded icon with the following breakpoints:
AQI Category
Good
Moderate
Unhealthy for
Sensitive Groups
Unhealthy
Very Unhealthy
Hazardous
6.6 History Mode
6.6.1 Min/Max
View high and low records, and clear specific records in the history mode.
View and reset minimum and maximums.
Version 2.12
appears when then Dew Point exceeds 70 ºF, which signifies temperature
Color
Green
Yellow
Orange
Red
Purple
Maroon
Figure 21
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Breakpoints
3
(µg/m
)
0.0 – 12.0
12.1 – 35.4
35.5 – 55.4
55.5 – 150.4
150.5 – 250.4
250.5 – 500
Page 21