6
Specifications (cont.)
Sensor
Measurement
Accuracy
Available on
Wind Speed
0, 2
-
150 mph
0, 3
-
241 km/h
±2 mph (±3
km/h), ±5%
All but 2800
Wind Direction
1
o
increments
±4
o
All but 2800
Air
Temperature*
-
40° to 125°C
-
40° to 257°F
±0.3°C
±0.5°F
All but 2800
Relative
Humidity*
0% to 100%
@5° to 50°C
±2%
2550, 2700,
2900ET
Dew Point
2550, 2700,
2900ET
-
73° to 60°C
-
99° to 140°F
±2°C
±4°F
Rainfall
0.01”
(0.25mm)
resolution
±2% at < 2 in
(5 cm) /hr
2600, 2700,
2900ET
Solar
Radiation
1
-
1500 W/m
2
±5%
2900ET
Operating Temperature Range
:
-
22° to 130°F (
-
30° to 55°C)
Weather
Station
Firmware
Version
Number of
Sensors
Available
Channels
2550, 2700
6.9
2
A, D
2800
3.2
2
A, D
2900ET
6.9
1
A
For a Weather Station to be compatible with the SMEC300 sensor,
SpecWare software version 9.04 or later is required. See the following
table for the earliest compatible firmware and number of sensors that
can be used per station type.
* In 2016, Spectrum introduced a new T/RH sensor (3613WD). The
cable for this sensor emerges from the bottom of the radiation shield
rather than the side. A station must be running firmware v. 7.8 or high-
er to be compatible with this sensor.