TAHMO

Technical Information

TAHMO MicroEnvironment Monitor (MEM)

Station specifications:
Provided with solar charger for self-powered operation with 6-month backup battery
Hourly GPRS reporting with 5 minute readings

Soil moisture and groundwater sensors available upon request.


Sensor Operating temperature range Notes
Anemometer -40 to 50 C Maximum sampling speed: 1 Hz.

Output: Avarage speed, gust speed, direction, or vector.

Rain gauge 0 to 60 C Not suitable for snowfall measurement.
Pyronometer -40 to 60 C Spectral range: 380 to 1120 nm.

Field of view: hemisperical, 180 C.

Barometer -40 to 85 C -500 m to 9,000 m above sea level.

Parameter
Range Resolution Accuracy
Wind speed 0 to 60 m/s 0.01 m/s  3 %
Wind direction 0 to 359 degrees 1 degrees  3 degrees
Temperature -40 to 80 C 0.1 C  0.5 C
Relative humidity 0 to 100% RH 0.1% RH  3%
Vapor pressure 0 to 47 kPa 0.01 kPa  0.3 kPa
Precipitation 0 to 230 mm/hr 0.014 mm  5%
Solar radiation 0 to 1,750 W/m2 1 W/m2  5%
Barometric pressure 49 to 109 kPa 0.015 kPa  0.4 kPa