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Table 7-5: SDI-12 commands and values returned
1
SDI-12 command
2
Values returned
Units
Response
time
a
M!
or
a
MC!
1. Address (0 through 9)
2. Relative wind direction
3. Relative wind speed
4. Corrected wind direction
5. Status (4-digit code); see
1. n/a
2. °
3. m/s
4. °
5. n/a
3 s
a
M1!
or
a
MC1!
1. Address (0 through 9)
2. Temperature
3. Relative humidity
4. Dew point
5. Barometric pressure
6. Status (4-digit code); see
7. Wind chill
8. Heat index
9. Air density
10. Wet bulb temperature
1. n/a
2. °C
3. %
4. °C
5. hPa
6. n/a
7. °C
8. °C
9. kg/m
2
10. °C
2 s
a
M2!
or
a
MC2!
1. Address (0 through 9)
2. Relative wind direction
3. Relative wind speed
4. Status (4-digit code); see
1. n/a
2. °
3. m/s
4. n/a
3 s
a
M3!
or
a
MC3!
1. Address (0 through 9)
2. Precipitation intensity
3. Total precipitation
4. Status (4-digit code); see
1. n/a
2. mm/hr
3. mm
4. n/a
3 s
?!
Returns the SDI-12 Address
1
Not all outputs are available for all sensors.
2
a
is the SDI-12 address. In the
SDI12Recorder()
CRBasic instruction, the command parameter does not
include the SDI-12 address because the address is a separate parameter.
MetSENS-Series Compact Weather Sensors
19