ATMOS 41W
Tech Specs
TECHNICAL SPECIFICATIONS
Measurement Specifications
Upload Frequency
Hourly upload (default)
Contact Customer Support for more frequent reporting options. Additional charges may apply.
Contact Customer Support for more frequent reporting options. Additional charges may apply.
Measurement Interval
5 min to 12 h (average or accumulation of more frequent sensor readings) (Section 2.2.7 of ATMOS 41W User Manual).
Time Keeping
Synchronize automatically and on-demand; GPS, cellular, or ZENTRA Utility software.
Solar Radiation
Range: 0–1,750 W/m2
Resolution:Â 1 W/m2
Accuracy: ±5% of measurement typical of measurement typical
Relative Humidity (RH)
Range: 0–100% RH (0.00–1.00)
Resolution:Â 0.1% RH
Accuracy: Sensor measurement accuracy is variable across a range of RH. See chart.
Air Temperature
Range: –63 to 60 °C
Resolution: 0.1 °C
Sensor Accuracy: ±0.2 °C at 25 °C
Measurement Accuracy: ±0.6 °C from –20 to 50 °C
For more information see Section 3.2.6 of the ATMOS 41W User Manual
Humidity Sensor Temperature
Range: –63 to 80 °C
Resolution: 0.10 °C
Accuracy: ±0.2 °C
Vapor Pressure
Range: 0–47 kPa
Resolution:Â 0.01 kPa
Accuracy: Sensor measurement accuracy is variable across a range of temperature and RH. See chart.
Barometric Pressure
Range: 1–120 kPa
Resolution:Â 0.01 kPa
Accuracy: ±0.05 kPa at 25 °C
±0.1 kPa from –10 to 50 °C
±0.5 kPa below -10 °C and above 60 °C
±0.1 kPa from –10 to 50 °C
±0.5 kPa below -10 °C and above 60 °C
Horizontal Wind Speed
Range: 0–30 m/s
Resolution:Â 0.01 m/s
Accuracy:Â The greater of 0.3 m/s or 3% of measurement
Wind Gust
Range: 0–30 m/s
Resolution:Â 0.01 m/s
Accuracy:Â The greater of 0.3 m/s or 3% of measurement
Wind Direction
Range: 0°–359.9°
Resolution: 0.1°
Accuracy: ±5°
Tilt
Range: 0° to 180°
Resolution: 0.1°
Accuracy: ±1°
Precipitation
Range: 0–2,000 mm/h
Resolution:Â 0.017 mm
Accuracy: ±5% of measurement from 0 to 1,000 mm/h
Electrical Conductivity
Range: 0–3 mS/cm
Resolution:Â 0.001 mS/cm
Accuracy:Â The greater of 0.005 mS/cm or 15% of measurement
Communication Specifications
Internet Downloads
SSL/TLS encrypted
Cellular Communication
3G Specifications:Â UMTS 3G 5-band cellular module with 2G fallback
3G Coverage:Â 550+ global partner carriers
Cellular and data hosting service provided by METER
Cellular and data hosting service provided by METER
4G Specifications:Â 4G LTE-M and NB-IoT cellular
4G Coverage: VERIZON, AT&T®, and T-Mobile in the USA.
Select global partner carriers
Cellular and data hosting service provided by METER
Select global partner carriers
Cellular and data hosting service provided by METER
NOTE: 4G is available in USA, Canada, and select other countries (Contact Customer Support or a METER sales partner for more information).
Mobile Communication
Bluetooth 5.2—supporting Bluetooth Low-Energy protocol.
GPS Communication
Type:Â Integrated 56-channel GPS/QZSS receiver
Update:Â Daily (automatic) and on-demand (manual)
Accuracy: ±4 m, with good sky view
Physical Specifications
Dimensions
Width:Â 16.5 cm (6.5 in)
Height:Â 31.8 cm (12.5 in)
Memory Type
Nonvolatile flash, full data retention with loss of power
Data Storage
8 MB (more than 100,000 records)
Battery Capacity
6 AA NiMH or alkaline batteries
Battery Life
Alkaline:Â 7 months typical for hourly uploads or 4 months with 15-min data upgrade.
NiMH:Â 3+ years with an unobstructed view of the sun.
Charging through solar energy harvesting.
Charging through solar energy harvesting.
Operating Temperature Range
Minimum: –40 °C
Typical:Â NA
Maximum: 60 °C
NOTE: Barometric pressure and relative humidity sensors operate accurately at a minimum of –40 °C. Alkaline batteries should be used if temperatures below -40 °C are expected.
Other
Compliance
EM ISO/IEC 17050:2010 (CE Mark)
GSA
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