ATMOS 41W
ATMOS 41W_UpView
ATMOS 41W_Onfield
ATMOS 41W ATMOS 41W_UpView ATMOS 41W_Onfield
ATMOS 41W - Wireless All in One Weather Station

The ATMOS 41W all-in-one remote weather station is one of the world's few truly wireless weather stations, and it's the most stations, and it's the most affordable research-grade station in its class. It's robust, reliable, and simple to use. All of the telemetry is enclosed with an integrated cell module. But that's not even the best part. There is nothing on the market that is easier to install. 

The ATMOS 41W remote weather station measures 10 environmental variables, including solar radiation, precipitation, air temperature (min, max, average), barometric pressure, vapor pressure, relative humidity, wind speed, wind direction, maximum wind gust, and tilt. It takes our ultra-reliable ATMOS technology to the next level with a dual rain measurement for higher accuracy and extended range, making it one of the most robust rain gauges on the market. It combines a drop counter and a tipping spoon to ensure accurate measurements, and it's the only rain gauge available that can measre electrical conductivity. Now you can tell if you're measuring rainwater, irrigation water, or if the funnel is plugged with bird droppings. 

On top of that, we've improved the solar radiation, water vapor, air temperature, and wind measurement capabilities to be more compliant with various meteorological organization observation standards.

  • Truly wireless weather station ideal for long-term, remote installations
  • Incredible 10-minute installation
  • All sensors, cellular communications and data logging integrated into a single, small form factor
  • Integrated sensor levelling mechanism
  • Improved wind speed accuracy
  • Improved rain funnel filter reduces clogging
  • Increased resolution of solar radiation measurement to 0.1W/m2 for standards compliance
  • Decreased sampling interval of solar radiation, water vapor, air temperature, and wind measurements to 3s for standards compliance
  • Extended air temperature range ( -63 to +60°C) for standards compliance
  • Calibrated thermistor to reliably achieve +/- 0.2°C @ 25°C for temperature sensor accuracy
  • Tipping spoon added for dual rainfall measurement
  • Addition of electrical conductivity measurement for rainfall
     
Solar Radiation

Range : 0 - 1,750 W/m2

Resolution : 1 W/m2

Accuracy : ±5% of measurement typical 

Relative Humidity (RH)

Range : 0 - 100% RH (0.00 - 1.00)

Resolution : 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

Resolution : 0.1

Accuracy : ±0.2

Vapor Pressure 

Range : 0 - 47 kPa

Resolution : 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 : 0.01 kPa

Accuracy : ±0.05 kPa at 25 

0.1 kPa from -10 to 50 

0.5 kPa below -10 and above 60

Horizontal Wind Speed 

Range : 0 - 30m/s

Resolution : 0.01m/s

Accuracy : The greater of 0.3 m/s or 3% of measurement

Wind Direction

Range : 0°–359.9°

Resolution : 0.1°

Accuracy : ±5°

Wind Gust

Range : 0 - 30m/s

Resolution : 0.01m/s

Accuracy : The greater of 0.3m/s or 3% of measurement 

Tilt

Range : 0° to 180°

Resolution : 0.1°

Accuracy : ±1°

Precipitation

Range : 0–2,000 mm/h

Resolution : 0.017 mm 

Accuracy : ±5% of measurement from 0 to 1,000 mm/h

Electrical Conductivity 

Range : 0–3 mS/cm

Resolution : 0.001 mS/cm

Accuracy : The greater of 0.005 mS/cm or 15% of measurement

Dimensions

Width :16.5 cm (6.5 in)

Height : 31.8 cm (12.5 in)

Data Storage 8 MB (more than 100,000 records)
Battery Capacity 6 AA NiMH or alkaline batteries
Battery Life

Alkaline:7 months typical for hourly uploads or 4 months with 15-min data upgrade.

NiMH:3+ years with an unobstructed view of the sun. Charging through solar energy harvesting.

Operating Temperature Range

Minimum:–40 °C

Typical: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.

Compliance EM ISO/IEC 17050:2010 (CE Mark)

 

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