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ATMOS 41 Gen 2

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ATMOS 41 Gen 2

All-In-One Weather Station

The world's best research-grade all-in-one weather station for atmospheric measurements that is both affordable and dependable.

Measures 12 weather variables
Designed for continuous deployment in harsh climates
Connect to ZL6 for data capture and management

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Overview / Features

The weather station problem

Most research-grade weather stations are cluttered, complicated, and frustrating to install and maintain. Wiring and programming can be a nightmare, and finding room to mount everything is a challenge. All-in-one weather stations solve these problems, but the tradeoff is flexibility. Adding just one more sensor often requires an extra logger, making the system more complicated and more expensive. The ATMOS 41 Gen 2 weather station is one of the first affordable, research-grade all-in-one weather station that fulfills all your weather monitoring needs but doesn’t restrain you when you want to make other measurements.

Second generation innovations

METER’s in-house research and development team have been working hard to make the ATMOS 41 Gen 2 more accurate, durable, and reliable than ever before. Wind speed can now be measured up to 60 m/s, meeting the requirements of even more industry standards, such as the IEC61724-1, making it ideal for applications such as utility-scale photovoltaic (PV) systems, and closer than ever to WMO guidelines.

The Gen 2 also provides a precipitation electrical conductivity (EC) measurement, more accurate precipitation measurements thanks to dual rain gauges, easier installation with built-in leveling bracket, and the option of MODBUS communication. Add in improved durability with more UV-resistant components, easier maintenance and serviceability, and a faster WMO-compliant sensor scan rate, and you’ve got the next generation in research-grade all-in-one weather stations.

More measurements. Lower Cost.

The ATMOS 41 Gen 2 weather station is one of the first affordable, research-grade all-in-one weather station that fulfills all your weather monitoring needs but doesn’t restrain you when you want to make other measurements. All 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 weather station with our ZL6 data loggers, you have the flexibility to add any of our other sensors, like soil moisture.

Simple, compact, and connected

The ATMOS 41 weather station works seamlessly with the ZL6 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. The ATMOS 41 weather station is a simple, compact, connected device with the flexibility to do more than weather measurements.

The weather station, reimagined

The ATMOS 41 weather station packages 12 weather sensors into a single, compact device for monitoring atmospheric conditions. It was designed for continuous deployment in harsh climates, such as sub-Saharan Africa and the extreme conditions around photovoltaic (PV) systems. There is only one moving part, eliminating virtually all failure points. No oiling or replacing bearings. Just reliability you can continue to count on.

Only one moving part

The one moving part on the Gen 2 is the tipping cup to provide better resolution at both high and low precipitation thresholds. Gold-plated pins measure each drop of rain using electric conductivity, ensuring a consistent 0.017 mm resolution for dew, rain, and heavy precipitation events. A sonic anemometer and internal accelerometer both ensure consistent, precise measurements without constant maintenance by insuring the stays level and motionless. Limiting the number of moving parts means the ATMOS 41 Gen 2 anemometer is also accurate at low wind speeds. It even has an accelerometer, so you’ll always know the sensor is level and you’re getting accurate data. And leveling the weather station is easier than ever with the new built-in leveling bracket.

Feature summary

Research weather station measures 12 weather variables including: air temperature, relative humidity, vapor pressure, barometric pressure, wind speed, gust and direction, solar radiation, dual precipitation, precipitation EC, lightning strike counter and distance
Wind speed measurements up to 60 m/s
Easy installation with built-in leveling bracket
Easy maintenance and serviceability with new side panel for accessing internal components
Only one moving part
All weather station data transmitted over a single wire
Choose either Digital SDI-12 communication or combined MODBUS and Digital SDI-12 communication
WMO-compliant sensor scan rate
Connect to ZL6 for data capture and management
Designed for continuous deployment in harsh climates
No louvered radiation shield to attract bugs
Accurate at low wind speeds because of limited moving parts will cause friction or fail
Detects fine-scale wind speed variations with 0.01 m/s resolution
Integrated weather station accelerometer detects if sensor is off-level
Integrated spring acts as a rain gauge filter to keep out large particles but still allow enough water flow
Optional bird deterrent fits perfectly on the weather station funnel

Specifications: TECHNICAL SPECIFICATIONS

Measurement Specifications

Solar Radiation

Range: 0 – 1750 W/m²

Resolution: 1 W/m²

Accuracy: ± 5% of measurement typical

Precipitation

Range: 0 – 1,500 mm/h

Resolution: 0.017 mm

Accuracy: ±5% of measurement from 0 to 1000 mm/h

Relative Humidity (RH)

Range: 0 – 100 % RH (0.00 – 1.00)

Resolution: 0.1% RH

Accuracy: Varies with temperature and humidity, See specification chart on page 13.

Hysteresis: ±0.80% RH, typical RH

Long-term Drift: ±0.25% RH/year, typical

Air Temperature

Range: –50 to 60 °C

Resolution: 0.10 °C

Accuracy: ±0.2 °C

Measurement Uncertainty: ±0.6 °C from –20 to 50 °C

Humidity Sensor Temperature

Range: –40 to 50 °C

Resolution: 0.10 °C

Accuracy: ± 1.0 °C

Vapor Pressure

Range: 0 – 47 kPa

Resolution: 0.01 kPa

Accuracy: Varies with temperature and humidity, ±0.2 kPa typical below 40 °C. See specification chart on page 12.

Barometric Pressure

Range: 1 – 120 kPa

Resolution: 0.01 kPa

Accuracy: ±0.05 kPa at 25 °C

Equilibration: <10 ms

Long-term Drift: < 0.1 kPa/year, typical

Horizontal Wind Speed

Range: 0–60 m/s

Resolution: 0.01 m/s

Accuracy: The greater of 0.3 m/s or 6% of measurement

Wind Gust

Range: 0–60 m/s

Resolution: 0.01 m/s

Accuracy: The greater of 0.3 m/s or 6% of measurement

Wind Direction

Range: 0 – 359 °

Resolution: 1 °

Accuracy: ±5 °

Tilt

Range: 0° to 180°

Resolution: 0.1°

Accuracy: ±1 °

Lightning Strike Count

Range: 0 – 65,535 strikes

Resolution: 1 strike

Accuracy: Variable with distance, >25% detection at <10km typical

Lightning Average Distance

Range: 0 – 40 km

Resolution: 3 km

Accuracy: Variable

Communication Specifications

Output

SDI-12 communication

Modbus RS-485

Data Logger Compatibility

METER ZL6 and EM60 data loggers or any data acquisition systems capable of switched 3.6- to 15.0-VDC excitation and SDI-12 communication

Modbus RS-485 enabled ATMOS 41 Gen 2s are capable of SDI-12 communication and Modbus RS-485 with excitation 4 to 24 VDC

Physical Specifications

Dimensions

Diameter: 10.0 cm (3.9 in)

Height: 28 cm (11.0 in), includes rain gauge filter

Operating Temperature Range

Minimum: –50 °C

Typical: NA

Maximum: 60 °C

NOTE: Barometric pressure and relative humidity sensors operate accurately at a minimum of –40 °C

Cable Length

5 m (standard)

1.5 m (5-pin and 8-pin M12)
75 m (maximum custom cable length for additional cost)

NOTE: Contact Customer Support if a nonstandard cable length is needed.

Cable Diameter

0.165 ±0.004 in (4.20 ±0.10 mm), with minimum jacket of 0.030 in (0.76 mm)

Connector Types

Stereo plug connector or 3 stripped and tinned wires

5-pin M12 connector or 5 stripped and tinned wires

8-pin M12 connector or 5 stripped and tinned wires

Stereo Plug Connector Diameter

3.5-mm

Conductor Gauge

22-AWG / 24-AWG drain wire

Electrical and Timing Characteristics

Supply Voltage (VCC to GND)

Minimum: 3.6 VDC continuous

Typical: NA

Maximum: 15.0 VDC continuous

NOTE: The ATMOS 41 Gen 2 weather station must be continuously powered in order to work properly

NOTE: For the ATMOS 41 Gen 2 weather station to meet digital logic levels specified by SDI-12, it must be excited at 3.9 VDC or greater.

Digital Input Voltage (Logic High)

Minimum: 2.8 V

Typical: 3.0 V

Maximum: 5.5 V

Digital Input Voltage (Logic Low)

Minimum: -0.3 V

Typical: 0.0 V

Maximum: 0.8 V

Digital Output Voltage (Logic High)

Minimum: NA

Typical: 3.6 V

Maximum: NA

NOTE: For the ATMOS 41 weather station to meet digital logic levels specified by SDI-12, it must be excited at 3.9 VDC or greater.

Power Line Slew Rate

Minimum: 1.0 V/ms

Typical: N/A

Maximum: N/A

Current Drain (During Measurement)

Minimum: 0.2 mA

Typical: 8.0 mA

Maximum: 33.0 mA

Current Drain (While Asleep)

Minimum: 0.2 mA

Typical: 0.3 mA

Maximum: 0.4 mA

Power Up Time (SDI Ready) — other commands

Minimum: NA

Typical: 800 ms

Maximum: NA

Power Up Time (SDI Ready) — aRx! commands

Minimum: NA

Typical: 3 s

Maximum: NA

Measurement Duration

Minimum: NA

Typical: 240 ms

Maximum: 3000 ms

Other

Pyranometer Spectral Response

See graph in specification chart

Compliance

EM ISO/IEC 17050:2010 (CE Mark)

Prop 65 warning

GSA

View GSA details

Support / FAQ

ATMOS 41 User Manual (Gen 2)

Manual

PDF

ATMOS 41 (Gen 2) Quick Start

Installer

PDF

ATMOS 41 (Gen 2) Integrator Guide

Instructions

PDF

Updating ATMOS 41 Firmware (Contact Support)

Firmware

URL, 0 MB

Bird Deterrent Installation Instructions

Instructions

PDF, 0.516 MB

Rain Funnel and Pyranometer Replacement Instructions For ATMOS 41

Instructions

PDF, 0.19 MB

How To Check the ATMOS 41 Drip Counter Calibration

Instructions

URL, 0 MB

ATMOS 41W/41 Gen 2 Wind Speed Collar Instructions

Instructions

PDF

Climavue 50 Shortcut CSI Example Program

Instructions

URL, 0 MB

ATMOS 41 Using C! CSI Example Program

Instructions

URL, 0 MB

ATMOS 41 Using M! CSI Example Program

Instructions

URL, 0 MB

ATMOS 41 (Gen 1) Quick Start

Quickstart Guide

PDF, 1.315 MB

ATMOS 41 Manual (Gen 1)

Manual

PDF, 2.5 MB

ATMOS 41 (Gen 1) Integrator Guide

Integrator Guide

PDF, 1.0251 MB

Instructions For Swapping The ATMOS 41 (Gen 1) RH Chip

Instructions

URL, 0 MB

Video: Replacing The ATMOS 41 (Gen 1) RH/Baro Daughterboard

Instructions

URL, 0 MB

ATMOS 41 FAQs

How do I clean the ATMOS 41?: Check out the video and instructions here.

How do I change ATMOS 41 Firmware?: Please contact support.

What are some tips for a good ATMOS 41 installation?

Location: Make sure the location you choose will give you answers to the questions that you want answered. If you’re looking for general weather monitoring, make sure the location is far (at least 3X height of tallest obstruction) from any obstructions to wind. Make sure the vegetation is representative, and make sure the topographical location is representative. Rooftops are pretty bad generally, as are deep valleys or hilltops. If you’re looking for reference ET, you’ll want to deploy in the field with at least a few meters of crop on all sides of the installation. Also make sure that nothing is going to shade the solar radiation sensor.
Height: A lot of groups mount the ATMOS 41 at 2 m height, because this is the norm for reference evapotranspiration. Others go higher for meteorological observations. Some even deploy in the canopy for specialized research questions. You can deploy easily at whatever height you want as long as you have the right mounting apparatus.
Mounting apparatus: The ATMOS 41 is designed to mount on a vertical rod (see the user manual and quickstart guide for exact dimensions). It is often deployed on a vertical pole anchored by either guy wires or by a good-quality tripod. Some even mount on T-posts, preferably with some guy wires to add stability.
Level: This is important for the ATMOS 41. You need to have it level to within 2 degrees in both the X and Y. There’s a bubble level underneath the rain funnel that you can see from below and use to get level. The ATMOS 41 also outputs x and y level as standard outputs, so you can make sure you’re within 2 degrees of zero. You’ll need to use the guy wires to pull the mounting apparatus level or add some shims to achieve proper level.
Check the data flow before you leave the field: Take a laptop (or handheld device if you’re using the ZL6 data logger) and the right software to make sure all the connections are good and that your data acquisition system is recording and/or transmitting data properly. A good best practice is to set it all up in the lab or office first, troubleshoot any issues, and then go to the field.
Always take a complete toolset: You never really know what you’re going to need when troubleshooting unique situations.
Tidy up the wires: The single biggest failure mode for environmental sensors is the wiring. Zip tying extra wire to the mounting mast can keep it from getting snagged by animals or whipped around in windstorms and unplugged from the data logger. Protecting the wiring in a cage or other container is great if you have the ability to do so. Any of these things make the installation look more professional, which is an added bonus.
For more info: Watch this webinar—7 Weather Station Installation Mistakes to Avoid.

How does rain impact anemometer performance?: During strong storm events, water can splash off of the convex base plate of the anemometer envelope and interrupt the signal passing between the ultrasonic transducers. The smooth convex surface of the base plate helps dissipate the energy of rainwater to minimize splashing and reduce the likelihood that the wind measurements are interrupted. Additionally, specially treated hydrophobic porous polyethylene membranes protect the ultrasonic transducers from direct splashing. Despite these features heavy rain and strong wind can still cause water to reach the membranes and also cause temporary water buildup on the base plate. The hydrophobic nature of the transducer protective membranes and the quick-draining ability of the base plate should limit wind measurement interruptions to heavy rain events and should bring wind measurement back online soon after extreme conditions abate.

Does the ATMOS 41 and ZL6 conform to the ASABE Automatic Agricultural Weather Stations Guidelines: From Table 1 of “Measurement and Reporting Practices for Automatic Agricultural Weather Stations“, the ATMOS 41 internal measurement sequence meets the sampling interval guidelines for the weather variables listed. The ZL6 data logger can be configured to report values each hour, as stated in Table 1; however, some min/max instantaneous values are not available when using the ZL6 for data acquisition and delivery. Consult the ATMOS 41 user manual for details on the output values processed in METER data loggers.

How frequently are measurements taken?: The ZL6 makes a measurement from each of the sensor ports in use every 60 s. However, the minimum measurement interval is five minutes for uploading data to ZENTRA Cloud. One-minute measurement interval is possible if you disable uploading data to ZENTRA Cloud, and these instructions are available upon request.

The ATMOS 41 measures the solar radiation and temperature once every 3 s and records the instantaneous values. When queried, the ATMOS 41 outputs the average of the instantaneous measurements since the last query.

The ATMOS 41 measures the wind speed and direction once every 3 s and records the instantaneous wind vector components. When queried, the ATMOS 41 outputs the average of the instantaneous measurements since the last query for wind speed and direction and the maximum instantaneous wind speed value for wind gust.

The anemometer samples every 3 s (or more often if requested for non-METER logger). The gust speed reported is the highest instantaneous wind speed measured during the selected averaging interval (must be > 6 s or gusts will equal speed).

If using a non-METER logger, then the ATMOS 41 can be scanned every three seconds, but it is not necessary to oversample the ATMOS 41 and compute averages, accumulations, and maximums in external data systems because the ATMOS 41 has an internal measurement sequence [see the integrator guide for more information]. Less frequent sampling has the additional benefit of decreasing data acquisition systems and ATMOS 41 power consumption.

What is the highest resolution scan rate for the ATMOS 22 and ATMOS 41?: With the ATMOS 41 and the M command, using a non-METER data logger, you can make measurements every 3 seconds. With the ATMOS 22 and the M command, using a non-METER data logger, you can make measurements every 1 second. Consult the integrator guides for more information. Contact METER if your application requires more frequent measurements.

What is the footprint of the ATMOS 41 (i.e., what area does it cover)?: The ATMOS 41 is a microclimate sensor, so you should position it to be representative of the climate relevant to the research questions you are asking. FAO56 gives guidelines to the positioning and field size of sensors, so if you intend to use the sensor for reference ET, follow those guidelines. The footprint of a micro-meteorological measurement depends on the height of the sensor(s), the wind speed, and the sensible heat flux and is not a simple calculation.

Is there a bird deterrent that METER recommends for the ATMOS weather station?: METER offers a bird deterrent ring that slides snugly onto the ATMOS funnel.

See an image and installation instructions here.

Does the ATMOS 41 need to be powered continuously?: Yes. There isn’t a way to get meaningful data from the ATMOS 41 without powering it continuously and letting its internal measurement sequence operate. The ATMOS 41 could be powered up at a set interval, allowed to take the first set of measurements, and then those could be output. But this scheme would miss nearly all precipitation, nearly all lightning, and would grab a single, instantaneous value of wind speed and direction, which is almost meaningless considering the inherent variability in wind. One thing to note is that the ATMOS 41 has been designed specifically to use as little power as possible in normal continuous-power mode. The average current consumption is on the order of 200 micro-amps. Even if the non-METER data acquisition device runs on just a few AA cells, it should be able to sustain this power draw for a very long time.

What is the practical lower limit of the wind speed measurement for the ATMOS 22 and ATMOS 41?: The practical lower limit for wind speed is about 0.03 m/s for our sonic anemometer. This is much better than cup anemometers, for example, which struggle making measurements below 0.5 m/s at the minimum because of difficulty starting and stopping. Sonic anemometers can read five times lower than that, yet they don’t necessarily read absolute zero.

How often should I send in my ATMOS 41 for recalibration?: The pyranometer and RH/barometer daughter board should be replaced every two years. You can replace these parts yourself. Prices and instructions are available. Or, you can request an RMA from METER Support and ship the instrument to METER for updating the pyranometer and RH/barometer daughter board.

Do you have a heater option for the ATMOS 41 to measure liquid water from hail and snow?: We do not have a heated version of the ATMOS 41 at this time. The model to correct for temperature based on the energy balance should be good in all situations in which the radiation and wind sensors can collect reliable data, however, being buried in snow and ice may impede the function of both. This sensor suite will certainly not be a universally great fit for all climates on earth. If the winter precipitation is critical for your study other instruments will be necessary.

Grounding and lightning protection suggestions for ATMOS 41: We expect that even at a two-meter height the ATMOS 41 is going to be a magnet for strikes. A nearby lightning rod might cause some small underestimation of solar radiation, but if it were even a meter away, that effect would be minimal (for affecting pyranometer measurements). So, a lightning rod would likely always be a good idea but certainly not convenient. The taller installations are more important to protect. For sensors installed below the ground surface, use these guidelines.

What type of pole should I mount the ATMOS to?: The ATMOS 41 and ATMOS 22 mounting type can be a meteorological stand, pole in cement, or tripod; 31.8 mm to 50.8 mm, 1.25” to 2.0” diameter. The ATMOS 41 is fitted with a V-bolt, allowing it to be mounted on top of most posts, poles, tripods, etc.

Tighten the bolts by hand, and then use a wrench to gently finish tightening the bolts, securing the ATMOS flat and tight against the top of the stand with a flat top. Shims may be needed at the top to level the unit if the pole is not level. CAUTION: Do not over-tighten the V-bolt. This will cause the plastic ATMOS bracket to break.

METER offers a low-cost anemometer mast that could be used to mount either the ATMOS 41 or ATMOS 22.

Installing the ATMOS 41 at high elevations: The ATMOS 41 performs well at high elevation (tested at 3100 m), but during cold seasons, it may get buried in snow, and it will not count the frozen precipitation. Also, when frozen, the anemometer section will probably fill up with ice and not read correctly until the ice melts.

METER doesn’t offer a heated rain gauge (or heated version of the ATMOS 41 sensor). If you are thinking about an external heater for the ATMOS 41, one challenge you’ll face is powering an external heater. The power budget of the METER data logger doesn’t have room for a heater.

How does the ATMOS 41 record an accurate air temperature without a radiation shield?: The ATMOS 41 collects all of the information necessary to correct for absorbed radiation in a biophysical model. Because the ATMOS 41 also measures wind speed and solar radiation, it is possible to use a simple energy balance calculation to correct the Tair measurement. After correction, error decreases to < 0.5 °C and yields better accuracy than commonly used passive ventilation radiation shields. The equation and experimental results are available in our application note.

With a pyranometer, how quickly could you catch a problem such as a bird soiling the instrument with a service like ZENTRA?: On a sunny day, within a few hours. On a cloudy day, it might take a few days.

Resources / Publications

Resources

Educational links

Support links

Case studies

Selected Publications

Listed below are a few examples of cited publications for the ATMOS 41 all-in-one weather station. This list is not exhaustive.

2020

Bahlol, Haitham Y., Abhilash K. Chandel, Gwen-Alyn Hoheisel, and Lav R. Khot. “The smart spray analytical system: Developing understanding of output air-assist and spray patterns from orchard sprayers.” Crop Protection 127 (2020): 104977. (Article link).
Genc, Derya, Jeramy Ashlock, Bora Cetin, Kristen Cetin, Masrur Mahedi, Robert Horton, and Halil Ceylan. “Analysis of In Situ Soil Thermal and Hydraulic Data from a Subgrade Sensor Network under a Granular Roadway.” In Geo-Congress 2020: Modeling, Geomaterials, and Site Characterization, pp. 142-151. Reston, VA: American Society of Civil Engineers, 2020. (Article link).
Mutuku, Eunice A., Dries Roobroeck, Bernard Vanlauwe, Pascal Boeckx, and Wim M. Cornelis. “Maize production under combined Conservation Agriculture and Integrated Soil Fertility Management in the sub-humid and semi-arid regions of Kenya.” Field Crops Research 254 (2020): 107833. (Article link).

2019

Altdorff, Daniel, Lakshman Galagedara, Joinal Abedin, and Adrian Unc. “Effect of Biochar Application Rates on the Hydraulic Properties of an Agricultural-Use Boreal Podzol.” Soil Systems 3, no. 3 (2019): 53. (Article link).
Osroosh, Yasin, and R. Troy Peters. “Detecting fruit surface wetness using a custom-built low-resolution thermal-RGB imager.” Computers and Electronics in Agriculture 157 (2019): 509-517. (Article link).

2018

Chandel, Abhilash K., Lav R. Khot, Yasin Osroosh, and Troy R. Peters. “Thermal-RGB imager derived in-field apple surface temperature estimates for sunburn management.” Agricultural and Forest Meteorology 253 (2018): 132-140. (Article link).

Accessories: Quick deploy tripod kit

PHYTOS 31, ATMOS 14, ATMOS 22, ATMOS 41 Gen 2, ATMOS 41W

Cable repair and replacement accessories

TEROS 10, TEROS 11, TEROS 12, TEROS 22, TEROS 21, TEROS 31, TEROS 32, TEROS 06, TEROS 54, PHYTOS 31

ATMOS 41 teflon screen

ATMOS 41 Gen 2, ATMOS 41W

ATMOS 41 Gen 2 extension cables

ATMOS 41 Gen 2

ATMOS rain funnel and pyranometer replacement kit

ATMOS 41 Gen 2, ATMOS 41W

ATMOS bird deterrent

ATMOS 41 Gen 2, ATMOS 41W

View All Accessories

"When we were deciding on equipment we asked ourselves: What kind of technology should we use? It had to provide high data integrity. It had to be easy to deploy and maintain. And it had to be cost effective. There’s not a lot of people in that sector. METER systems are low profile, they’re affordable, and the reliability is there."

Kevin Hyde, Montana Mesonet Manager

ATMOS Features

wdt_ID	wdt_created_by	wdt_created_at	wdt_last_edited_by	wdt_last_edited_at	Features	ATMOS 41W	ATMOS 41 Gen 2	ATMOS 22	ATMOS 14
1	eric.lozaga	20/02/2024 01:14 PM	eric.lozaga	12/12/2024 01:15 PM	Air Temperature	✓	✓		✓
2	eric.lozaga	20/02/2024 01:14 PM	eric.lozaga	12/12/2024 01:15 PM	Relative Humidity	✓	✓		✓
3	eric.lozaga	20/02/2024 01:14 PM	eric.lozaga	12/12/2024 01:15 PM	Barometric Pressure	✓	✓		✓
5	eric.lozaga	20/02/2024 01:15 PM	eric.lozaga	12/12/2024 01:17 PM	Vapor Pressure	✓	✓		✓
6	eric.lozaga	20/02/2024 01:15 PM	eric.lozaga	12/12/2024 01:18 PM	Wind Speed	✓	✓	✓
7	eric.lozaga	20/02/2024 01:15 PM	eric.lozaga	12/12/2024 01:18 PM	Wind Direction	✓	✓	✓
8	eric.lozaga	20/02/2024 01:15 PM	eric.lozaga	12/12/2024 01:18 PM	Wind Gust	Up to 30 m/s	Up to 60 m/s	Up to 30 m/s
9	eric.lozaga	20/02/2024 01:15 PM	eric.lozaga	12/12/2024 01:18 PM	Solar Radiation	✓	✓
10	eric.lozaga	20/02/2024 01:15 PM	eric.lozaga	12/12/2024 01:18 PM	Precipitation	✓	✓
11	eric.lozaga	20/02/2024 01:16 PM	eric.lozaga	12/12/2024 01:19 PM	Precipitation EC	✓	✓
12	eric.lozaga	20/02/2024 01:16 PM	eric.lozaga	12/12/2024 01:19 PM	Lightning Strike Count		✓
13	eric.lozaga	20/02/2024 01:16 PM	eric.lozaga	12/12/2024 01:19 PM	Lightning Strike Distance		✓
14	eric.lozaga	20/02/2024 01:16 PM	eric.lozaga	12/12/2024 01:19 PM	No Moving Parts	Only Tipping Cup	Only Tipping Cup	✓	✓
15	eric.lozaga	20/02/2024 01:17 PM	eric.lozaga	12/12/2024 01:19 PM	Plug-and-Play Installation	No Plug, Just Play	✓	✓	✓
16	eric.lozaga	20/02/2024 01:17 PM	eric.lozaga	12/12/2024 01:19 PM	All Data via 1 Cable	No Cables	✓	✓	✓
17	eric.lozaga	20/02/2024 01:17 PM	eric.lozaga	12/12/2024 01:20 PM	Compatible with ZL6 Loggers	N/A	✓	✓	✓
18	eric.lozaga	20/02/2024 01:17 PM	eric.lozaga	12/12/2024 01:20 PM	Compatible with Some 3rd Party Loggers	N/A	✓	✓	✓
19	eric.lozaga	20/02/2024 01:18 PM	eric.lozaga	02/04/2025 04:01 PM	Powered via Onboard Solar Panels	✓ *
20	eric.lozaga	20/02/2024 01:18 PM	ariel.dearth	23/02/2024 01:43 PM	Data Sent to ZENTRA Cloud	Standalone - Direct to ZENTRA	Via Data Logger	Via Data Logger	Via Data Logger
21	eric.lozaga	20/02/2024 01:18 PM	eric.lozaga	12/12/2024 01:20 PM	Accurate at Low Wind Speeds	✓	✓	✓	N/A
22	eric.lozaga	20/02/2024 01:19 PM	eric.lozaga	12/12/2024 01:20 PM	On-board Leveling	✓	✓
23	eric.lozaga	21/02/2024 10:33 AM	ariel.dearth	21/02/2024 10:44 AM	LEARN MORE	ATMOS 41W	ATMOS 41	ATMOS 22	ATMOS 14
24	eric.lozaga	12/12/2024 01:21 PM	eric.lozaga	02/04/2025 04:01 PM	*Powered by onboard AA rechargeable batteries

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ATMOS 41 Gen 2

ATMOS 41 Gen 2

All-In-One Weather Station

Overview / Features

The weather station problem

Second generation innovations

More measurements. Lower Cost.

Simple, compact, and connected

The weather station, reimagined

More weather station sensors than other solutions

Only one moving part

Feature summary

Specifications

TECHNICAL SPECIFICATIONS

Measurement Specifications

Communication Specifications

Physical Specifications

Electrical and Timing Characteristics

Other

Support / FAQ

ATMOS 41 FAQs

Resources / Publications

Resources

Educational links

Support links

Case studies

Selected Publications

2020

2019

2018

Accessories

Quick deploy tripod kit

Cable repair and replacement accessories

ATMOS 41 teflon screen

ATMOS 41 Gen 2 extension cables

ATMOS rain funnel and pyranometer replacement kit

ATMOS bird deterrent

ATMOS Features

Request a quote

USA

Europe

Introducing the ATMOS 41 Gen 2

What’s new