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Orion Weather Station

Orion Weather Station shown with optional Weather Display.

All-in-One Sensor Module with multiple sensor configurations

Sensors by ModelOrion 531 532 533 534 535
Pressure X

Temperature X

Humidity X
Rainfall X X X X
Wind Direction and Speed X X X

Now offering multiple parameter configurations with the convenience of an all-in-one sensor module, our most popular weather station is ideal for high-precision weather monitoring.


  • Most common measurements in all-in-one module
  • Accurate and stable measurements
  • Ultrasonic wind sensor
  • No moving parts
  • Advanced impact rainfall sensor
  • Low power consumption
  • Fast and simple to install
  • Low maintenance
  • One-year warranty

  • I wouldn't hesitate to recommend the Orion System to anyone who has a demanding application." ~Horizon Systems, Offshore Oil Ice Management in the Canadian Beaufort Sea

Additional Orion Models:

Orion 420 with 4-20 mA signal output

Orion LT Wind Only Weather Station

Call for a quote toll free 1-866-625-8620 or email

Orion Weather Monitoring System Diagram

Orion Weather Monitoring System Diagram
Orion Weather Station

Orion (complete)

PTU / +Rain

Orion 534/535

Wind / +Rain

Orion 532/533

Rain only

Orion 531

Orion Weather Stations incorporate various meteorological parameters in a compact, all-in-one sensor head.

Click below to expand for specific sensor and measurement details.

Both wind speed and direction are measured using an advanced ultrasonic sensor. The sensor uses ultrasound to determine horizontal wind speed and direction. The array of three equally spaced ultrasonic transducers on a horizontal plane is an ideal design which ensures accurate wind measurement from all wind directions, without blind angles or corrupted readings.

The wind sensor has no moving parts, which makes it maintenance free. The measurement range for wind speed is from 0 to 134 mph (0 to 60 m/s) and for wind direction from 0 to 360°.

Barometric pressure, temperature, and humidity measurements are combined in an advanced sensor module utilizing capacitive measurement method for each parameter.

Barometric pressure is measured using a silicon-based sensor. The sensor has minimal hysteresis and excellent repeatability, as well as outstanding temperature and long-term stability. The measurement range is from 17.72 to 32.48 in. Hg (600 to 1100 millibars)

Temperature measurement is based on a ceramic sensor. The measurement range is from -61.6 to 140 °F (-52 to +60 °C).

Humidity measurement is based on a capacitive technology. The sensor is highly accurate and it offers excellent long-term stability in a wide range of environments with negligible hysteresis. The measurement range for humidity is 0 to 100% RH.

This tri-sensor module is mounted in a specially designed radiation shield and is easily replaceable and available as a spare component.

The shield protects the sensors form both scattered and direct solar radiation and precipitation. The plastic material in the plates offers excellent thermal characteristics and UV stabilized construction. The white outer surface reflects radiation, while the black inside absorbs accumulated heat.

The rainfall measurement is based on an impact sensor, which detects the impact of individual rain drops. The signals exerting from the impacts are proportional to the volume of the drops. Hence, the signal from each drop can be converted directly to the accumulated rainfall. Due to the measurement method, flooding, clogging as well as wetting and evaporation losses in rain measurement are eliminated.

The Orion is a maintenance-free weather station that will provide you with years of operation. However, there are some simple steps you can take to extend the life of your sensor module.

Periodic cleaning - To ensure the accuracy of measurement results, the sensor module should be cleaned when it gets contaminated. Leaves and other such particles should be removed from the precipitation sensor and the transmitter should be cleaned carefully with a soft, lint-free cloth moistened with a mild detergent. Be careful when cleaning the wind sensors as they should not be rubbed or twisted.

Replacing the PTU module - The PTU module contains separate sensors for pressure, temperature and humidity. Sensors can drift over time and the manufacturer recommends replacing the PTU module once every two years to ensure that your unit meets its stated accuracy. This can be done in the field.

Wind Speed
Range: 0-135mph (0-60 m/s)
Accuracy: ±3% at 10 m/s
Resolution: 0.1 mph (0.1 m/s)
Units Available: knots, mph, km/hr, m/s

Range: -60 to 140°F (-52 to +60°C)
Accuracy: ±0.5°F (±0.3°C) at 68°F (+20°C)
Resolution: 0.1°F
Units Available: °F, °C

Relative Humidity
Range: 0 - 100%
Accuracy: ±3% (0-90%), 5% (90-100%)
Resolution: 1%
Units Available: %RH

Wind Direction
Azimuth: 0-360°
Accuracy: ±3°
Resolution: 1°
Units Available: ° Azimuth

Barometric Pressure
Range: 17.50 to 32.50 InHg (600 to 1100 hPa)
Accuracy: ±0.015 InHg (0.5 hPa) at +32 to 86°F (0 to 30°C)
±0.03 InHg (1 hPa) at -60 to 140°F (-52 to 60°C)
Resolution: 0.01 InHg (0.1 hPa)
Units Available: Kpa, mbar, InHg

Range: cumulative
Collection Area: 60 cm2
Accuracy: ±5% (spatial variations may exist)
Resolution 0.001 in. (0.0254mm )
Units Available: mm, inches

Sensors by Model Orion 531 532 533 534 535
Pressure X

Temperature X

Humidity X
Rainfall X X X X
Wind Direction and Speed X X X

Orion (complete): impact rain gauge, ultrasonic wind speed and direction, temperature, relative humidity, air pressure

Model 531: impact rain gauge

Model 532:ultrasonic wind speed and direction

Model 533: impact rain gauge, ultrasonic wind speed and direction

Model 534: air pressure, temperature, relative humidity

Model 535: impact rain gauge, pressure, temperature, relative humidity

Optional sensors of Solar Radiation, Photosynthetically Active Radiation, Visibility, Wind Sensor, and additional Temperatures can be connected via the Weather MicroServer.

Select your desired method of data viewing and monitoring. Click a title to expand text for additional information.

FTP output (XML and CSV) • XML web service • Internet browser user interface

SNMP, Modbus/OPC and RTU communication protocols are standard for Industrial Management applications.

Compatible with CWOP (Citizen Weather Observer Program) and Weather Underground, the MicroServer can automatically post data from your weather station to these network websites.

Open Weather MicroServer Page

Weather MicroServer

Industrial grade WVGA touchscreen displays current weather data, trends, min/max.

Computes and displays wind chill, heat index and other calculated parameters.

Seven-inch color LCD panel with 800 x 480 pixel resolution.

Available in desktop/wall-mount chassis, 19" rack mount, or panel mount.

Open Weather Display Page

Color Weather Display

Weather Master™ is our proprietary software optimized for CWS weather stations. It provides computer weather monitoring, calculated parameters, graphing and trend displays, as well as automatic archiving of weather data, alarm notification, interface with CAMEO/ALOHA, and weather web page updates.

Additional software options are available including third-party software for PC and Mac.

Open Weather Software Page

Weather Software

The Orion 420 offers 4-20mA signal output to interface to PLC, DCS, and SCADA systems.

Open Orion 420 Page

Orion 420 Weather Station

Communication connection options between sensor head and monitoring device. Click heading to expand for details.

Included with the Orion Weather Station is a 50-foot section of sensor cable which connects to the Interface Module.

A standard 7-foot serial communication cable connects the Interface Module to a computer or display console. Extra length RS-232 cable is available up to 200 feet, catalog number 8233.

For lengths from 200 to 4000 feet, refer to the RS-485 Short Haul Modem option below.

Wireless transceivers offer a cable-free means to remotely monitor weather information when hardwire installations are not feasible or practical.

For fixed-mount weather stations, 2.4 GHz and 900MHz wireless transceiver options offer outdoor line-of-site range at one mile and 20 miles, respectively.

For the wireless Orion Weather Station, a transceiver is housed in a weatherproof enclosure near the sensor head. A single transceiver is connected to the Interface Module at the data display site, which then is connected to a Weather Display Console and/or computer.

These stations require power at the site of the weatherproof enclosure. This power can be AC, battery or solar. The Orion sensor head requires significantly less power and is a good choice for solar or battery-powered operation.

A wireless weather station system configuration would include the weather station itself with display or software, plus a weatherproof enclosure and transceivers.

2.4 GHz: FCC (USA), IC (Canada) and ETSI (Europe).
900 MHz: FCC and IC

2.4 GHz Wireless Transceiver

2.4 GHz Model, Catalog Number 8245

900 MHz Model, Catalog Number 8255

Catalog Number 8250

This device connects the weather station to a Local Area Network (LAN). At the monitoring computer a driver creates a virtual serial port and converts the data to be read by the available terminal program or weather software such as Weather Master or WeatherView 32.

For weather monitoring applications situated in a large facility such as an industrial plant or hospital, instead of running miles of cable from the weather station on the roof to a computer on the first floor, users can take advantage of existing LAN cables to hook up.

This device provides for the flexibility of placing the weather station any where close to an Ethernet connection.

Includes a power supply, driver and Ethernet cable.

Ethernet Converter

Catalog Number 8248

Two RS-485 converters are used to extend the RS-232 range from 200 feet to 4000 feet. Includes power supplies.

Order cable by the foot, catalog number 8230.

Due to the wide variety of installations, masts and mounting hardware are sold separately. The following items are available from Columbia Weather Systems. (Click to expand for details.)

For mounting wind sensor assembly; includes two five-foot sections.
Catalog Number: 88005

(May be used with Roof or Wall Mount Kit below.)

For mounting wind sensor assembly; recommended for lightning-prone regions; includes two five-foot sections.
Catalog Number: 88004

(May be used with Roof Mount Kit below.)

Includes universal mast mount, guy wire clamp, guy wire, lag screws, and eye bolt screws.
Catalog Number: 88002

(Does not include mast - User supplied or select steel or fiberglass mast above)

Open Hardware Kit PDF including diagrams

Roof Mount Hardware Kit
(Catalog Number 88002)

Includes 4" wall mounts with lag screws..
Catalog Number: 88003

(Does not include mast - User supplied or select steel mast above)

Open Hardware Kit PDF including diagrams

Wall Mount Hardware Kit
(Catalog Number 88003)

This tripod mast is designed to provide 8 to 10 feet of stable, secure support for your weather station sensors or other instrumentation. Set up takes less than five minutes.

Competitively priced and sturdy, the tripod is constructed from welded aluminum and anodized for appearance and longevity. The 15-pound tripod can support up to 60 pounds of equipment such as weather sensors on a 1" (outside diameter) vertical pipe stub.

Operational Features

  • Sturdy construction supports up to 60 pounds of equipment.
  • Legs insert easily into body and fasten securely with stainless steel retainer pins.
  • Guy wires clip quickly to feet for increased stability.
  • Includes tiedown kit for optional optimized stability.

Tripod Specifications

Capacity: Supports up to 60 lbs.
Diameter: 1" OD
Shipping Weight: 17lbs
Shipping Box Dimensions: 70" x 8" x 8"

Order Information

Tripod with Tiedown Kit, Catalog Number: 88019
Tripod Tote for storage and transportation, Catalog Number: 88009

Open Tripod Data Bulletin PDF

Weather Station Tripod Mast
Tripod Leg Joint
Tripod TieDown Kit

Universal mounting adapter to attach weather sensors to existing towers or alternate masts, even those with multiple instruments. Can be used vertically or horizontally. Aluminum construction. Includes three clamps for mast of up to 3” diameter.

Catalog Number: 88022

(Does not include mast - User supplied)

Open Diagram PDF

Weather Station Mount
Weather Station Mounting Adapter

Universal Mount for Tower/Mast shown above with Pulsar 600 Weather Station. (Catalog Number 88022)

The following accessories are available for Orion Weather Stations. Surge protection with the Lightning Arrestor is highly recommended. Click a title to expand text for additional information.

Three-stage surge protector, for data and power signals.

A nearby lightning strike may induce a high voltage surge which the internal suppressor of your weather instrument may not be able to withstand, causing significant damage to the weather station. Protect your weather station investment with a Lightning Arrestor.

This compact transient overvoltage suppressor is designed for weather stations in areas with an elevated risk of lightning strike.

  • Superior 3-stage surge protection
  • Tolerates up to 10kA surge currents
  • Both differential and common mode protection on each channel
  • Filtering against HF and RF noise
  • Two power channels and two data channels
  • Environmental protection class IP66

Catalog Number: 8355

Includes adjustable mounting clamp.

Download Lightning Arrestor PDF

Lightning Arrestor

Plugs directly into the Ethernet Port on the Weather MicroServer.

Catalog Number: 8356

Plugs directly into Serial Port on a computer or Weather MicroServer.

Catalog Number: 8353

For the Orion and Orion LX wireless weather stations the weatherproof enclosure houses the power supply and wireless transceiver.

Designed for use in either indoor or outdoor settings, the enclosure can be used in highly corrosive environments typically found in oil refineries, chemical processing plants, waste water treatment, and marine installations.

Cables are routed through liquid tight strain relief fittings.


  • Molded fiberglass polyester has outstanding chemical and temperature resistance and exhibits excellent weatherability and physical properties.
  • Seamless foam-in-place gasket assures watertight and dust-tight seal
  • Polyester mounting feet and stainless steel attachment screws are provided with each enclosure.
  • The quick-release, corrosion-resistant polyester latches are located in corners which allow unobstructed access to enclosure.

Overall Size:
L 10 x W 8 x H 6 inches (254 x 203 x 152mm)

Weatherproof Enclosure

A weatherproof enclosure is available to house the Weather MicroServer and protect it from the elements.

Designed for use in indoor and outdoor settings, the enclosure can be used in highly corrosive environments typically found in oil refineries, chemical processing plants, waste water treatment, and marine installations.

Cables are routed through liquid tight strain relief fittings.


  • Molded fiberglass polyester has outstanding chemical and temperature resistance and exhibits excellent weatherability and physical properties.
  • Seamless foam-in-place gasket assures watertight and dust-tight seal
  • Polyester mounting feet and stainless steel attachment screws are provided with each enclosure.
  • The quick-release, corrosion-resistant polyester latches are located in corners which allow unobstructed access to enclosure.

Overall Size:
L 10 x W 8 x H 6 inches (254 x 203 x 152mm)

To fully power weather stations in applications that do not have access to electricity, we offer solar panels. These are custom per installation based on geographical location. Most common are 20 and 40-watt systems.

Catalog Number: 83000


  • solar panel
  • controller
  • mounting adapter
  • battery and battery enclosure
Solar Power Panels

Seagulls seem to be inordinately fond of the ultrasonic transducers on the Orion Weather Stations.

To discourage pecking and nesting we offer this Bird Spike Kit.

Designed not to hurt the birds, the spikes provide a barrier to make it more difficult for birds to land on top of the transmitter.

This option is highly recommended for coastal environments.

Catalog Number: 9584

Bird Spike Kit

The sensor head is one of the most fragile components of an all-in-one weather station, and frequently the one subject to the most abuse -- especially in portable and mobile installations. In addition to our standard one-year warranty which is included with the purchase price, we offer Extended Standard and "No-Fault" Warranties on the Orion Sensor Module.

The Free One-Year Standard Factory Warranty and the Extended Standard Factory Warranty do NOT cover damage due to normal wear and tear, exceptional operating conditions, negligent handling or installation, or unauthorized modifications.

The No-Fault Warranty covers repair service fees, parts and material that are not covered under the Standard Warranty. This includes damages caused by negligent handling or installation, as well as Acts of God.

Warranty service options can only be purchased with new orders.

Catalog Number: 85110

The new battery back-up option provides continuous power to the weather station system in the event of an electrical outage. The 12VDC battery comes in a NEMA enclosure and can power a non-heated Orion LX Weather Station for up to three days. It is available for most weather station configurations.

Catalog Number: 8395-1
Enclosure Size: 12" x 10" x 6"
Enclosure: 16 gauge galvanized steel with polyester power finish
Industry Standards: NEMA/EEMAC Type 3R
Battery: 28 AHr Sealed Lead Acid Rechargeable
Power Input: 88 - 264VAC
Power Output: 12VDC

Battery Backup

Orion Brochure

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Orion User Manual

Open Orion User Manual PDF