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    All-in-one weather station


The problem with weather stations

Most weather stations are cluttered, complicated and frustrating to install and maintain. Wiring and programming all the components can be a nightmare and finding room to mount everything can be a challenge.

All-in-one weather stations solve many of these problems, but the tradeoff is flexibility. Adding just one more sensor often requires an extra data logger, making the system more complicated and more expensive.

All-in-one plus one

Our solution is an all-in-one…plus one. The all new ATMOS 41 is the first affordable all-in-one weather station that fulfills all your weather monitoring needs, but doesn’t restrain you when you want to do more.

Weather sensors empowered

The ATMOS 41 packages 12 weather sensors into a single, compact device for atmospheric conditions. There are no moving parts to fail. So, installation and maintenance have been simplified to the maximum.

Most all-in-one weather stations give you the option to measure solar radiation or precipitation, but not both. ATMOS 41 provides both measurements in one device, so you never have to compromise.

ATMOS 41 weather data e.g. humidity, temperature or atmospheric pressure are transmitted over a single wire. That means you don’t have to use all of the ports on your data logger just for weather measurements. And, if you are using the ATMOS 41 with EM60G data loggers, you have the flexibility to add any of our other sensors, like soil moisture.

The ATMOS 41 works seamlessly with the EM60G for simple, plug-and-play atmospheric data logging and cloud-based data storage and management. You can set up an entire weather monitoring system without any complex wiring or programming.

Weather stations, reimagined

ATMOS 41 is a simple, compact, and connected device with the flexibility to do more than weather measurements. That is why we call it an all-in-one plus one, or two, or three…

Solar radiation

Range: 0 to 1750 W/m2
Resolution: 1 W/m2
Accuracy: ± 5% of measurement typical


Range: 0 to 400 mm/h
Resolution: 0.017 mm
Accuracy: ± 5% of measurement from 0 to 50 mm/h

Vapor pressure

Range: 0 to 47 kPa
Resolution: 0.01 kPa
Accuracy: varies with temperature and humidity, ±0.2 kPa typical below 40 °C

Relative humidity

Range: 0 to 100%
Resolution: 0.1%
Accuracy: varies with temperature and humidity, ±3% RH typical

Air temperature

Range: -40 to 50 °C
Resolution: 0.1 °C
Accuracy: ± 0.6 °C

Humidity sensor temperature

Range: -40 to 50 °C
Resolution: 0.1 °C
Accuracy: ± 1.0 °C

Barometric pressure

Range: 50 to 110 kPa
Resolution: 0.01 kPa
Accuracy: ± 0.1 kPa

Horizontal wind speed

Range: 0 to 30 m/s
Resolution: 0.01 m/s
Accuracy: the greater of 0.3 m/s or 3% of measurement

Wind gust

Range: 0 to 30 m/s
Resolution: 0.01 m/s
Accuracy: the greater of 0.3 m/s or 3% of measurement

Wind direction

Range: 0 to 359°
Resolution: 1°
Accuracy: ± 5°

Compass heading

Range: 0 to 359°
Resolution: 1°
Accuracy: ± 5°


Range: 0° to 180°
Resolution: 0.1°
Accuracy: ± 1°

Lightning strike count

Range: 0 to 65,535 strikes
Resolution: 1 strike
Accuracy: variable with distance, >25% detection at <10km typical

Lightning average distance

Range: 0 to 40 km
Resolution: 3 km
Accuracy: variable


10 cm diameter x 34 cm height (includes rain gauge filter)

Cable length

5 m (custom cable lengths are available for an additional cost)

Data logger compatibility (not exclusive)

EM60/60G, Campbell Scientific



Supply voltage (VCC) to GND

Minimum: 3.6 VDC continuous
Maximum: 15.0 VDC continuous

Digital input voltage (logic high)

Minimum: 2.8 V
Typical: 3.0 V
Maximum: 3.9 V

Digital input voltage (logic low)

Minimum: -0.3 V
Typical: 0.0 V
Maximum: 0.8 V

Power line slew rate

Minimum: 1.0 V/ms

Current drain (during measurement)

Minimum: 0.2 mA
Typical: 8.0 mA
Maximum: 16.0 mA

Current drain (while asleep)

Minimum: 0.2 mA
Typical 0.3 mA
Maximum: 0.4 mA

Operating temperature range

Minimum: -40 °C
Maximum: 50 °C

Power up time (SDI ready)—aRx! commands

Typical: 10 s

Power up time (SDI ready)—other commands

Typical: 800 ms

Measurement duration

Typical: 110 ms
Maximum: 3,000 ms


Manufactured under ISO 9001:2015
EM ISO/IEC 17050:2010 (CE Mark)

Pyranometer spectral response

Spectral response estimate of Apogee silicon-cell pyranometers. Spectral response was estimated by multiplying the spectral response of the photodiode, diffuser, and adhesive. Spectral response measurements of diffuser and adhesive were made with a spectrometer, and spectral response data for the photodiode were obtained from the manufacturer.

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