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  • RXW-WCF-xxx
  • RXW-WCF-xxx
  • RXW-WCF-xxx
  • RXW-WCF-xxx
  • RXW-WCF-xxx
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HOBOnet Wind Speed and Direction Sensor

RXW-WCF-900 • RXW-WCF-868 • RXW-WCF-922
 

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Overview

The HOBOnet Wireless Wind Speed and Direction Sensor records wind speed, wind gust, and wind direction. HOBOnet Wireless Sensors communicate data directly to the RX3000 weather station or pass data through other wireless sensors back to the central station. They are preconfigured and ready to deploy, and data is accessed through HOBOlink, Onset’s innovative cloud-based software platform.

Highlighted Features


Sensor Features

  • Provides average wind speed, highest 3-second wind gust, and average wind direction for the measurement interval
  • Designed to meet World Meteorological Organization (WMO) guidelines

Wireless Features

  • 900 MHz wireless mesh self-healing technology
  • 450 to 600 meter (1,500 to 2,000 feet) wireless range and up to five hops
  • Up to 50 wireless sensors per RX3000
  • Simple button-push to join the HOBOnet wireless network
  • Onboard memory to ensure no data loss
  • Powered by rechargeable AA batteries and built-in solar panel

In what environment does this sensor operate?

This sensor operates in an outdoor environment.

What measurements does this sensor support?

The RXW-WCF-xxx sensor supports the following measurements: Evapotranspiration and Wind

The HOBOnet Wireless Wind Speed and Direction Sensor records wind speed, wind gust, and wind direction. HOBOnet Wireless Sensors communicate data directly to the RX3000 weather station or pass data through other wireless sensors back to the central station. They are preconfigured and ready to deploy, and data is accessed through HOBOlink, Onset’s innovative cloud-based software platform.

Highlighted Features


Sensor Features

  • Provides average wind speed, highest 3-second wind gust, and average wind direction for the measurement interval
  • Designed to meet World Meteorological Organization (WMO) guidelines

Wireless Features

  • 900 MHz wireless mesh self-healing technology
  • 450 to 600 meter (1,500 to 2,000 feet) wireless range and up to five hops
  • Up to 50 wireless sensors per RX3000
  • Simple button-push to join the HOBOnet wireless network
  • Onboard memory to ensure no data loss
  • Powered by rechargeable AA batteries and built-in solar panel

In what environment does this sensor operate?

This sensor operates in an outdoor environment.

What measurements does this sensor support?

The RXW-WCF-xxx sensor supports the following measurements: Evapotranspiration and Wind

Learn More

To see the full specifications for this product, please see our product manual found under the documentation tab if available.

Sensor

 

Wind Speed/Gust

Wind Direction

Measurement Range

0 to 76 m/sec (0 to 170 mph)

0 to 355 degrees

Accuracy

±1.1 m/sec (±2 mph) or ±5% of reading,
whichever is greater

±7 degrees

Resolution

0.5 m/sec (1.1 mph)

1.4 degrees (0 to 355 degrees)

Starting Threshold

≤1 m/sec (2.2 mph)

1 m/sec (2.2 mph)

Turning Radius

108 mm (4.25 in.)

Approximately 135 mm (5.25 in.)

Measurement Definition

Cup revolutions are accumulated every three seconds for the
duration of the logging interval
Wind speed: Average speed for the entire logging interval
Gust speed: The highest three-second wind recorded during the logging interval

Unit vector averaging used; vector components for each wind measurement are calculated every three seconds for duration of logging interval

 

 

Wireless Mote

Operating Temperature Range

-25° to 60°C (-13° to 140°F) with rechargeable batteries
-40 to 70°C (-40 to 158°F) with lithium batteries

Radio Power

12.6 mW (+11 dBm) non-adjustable

Transmission Range

Reliable connection to 457.2 m (1,500 ft) line of sight at 1.8 m (6 ft) high
Reliable connection to 609.6 m (2,000 ft) line of sight at 3 m (10 ft) high

Wireless Data Standard

IEEE 802.15.4

Radio Operating Frequencies

RXW-WCF-900: 904–924 MHz
RXW-WCF-868: 866.5 MHz
RXW-WCF-922: 916–924 MHz

Modulation Employed

OQPSK (Offset Quadrature Phase Shift Keying)

Data Rate

Up to 250 kbps, non-adjustable

Duty Cycle

<1%

Maximum Number of Motes

50 motes per one RX Wireless Sensor Network

Battery Type/ Power Source

Two AA 1.2V rechargeable NiMH batteries, powered by built-in solar panel or two AA 1.5 V lithium batteries for operating conditions of -40 to 70°C (-40 to 158°F)

Battery Life

With NiMH batteries: Typical 3–5 years when operated in the temperature range -20° to 40°C (-4°F to 104°F) and positioned toward the sun (see Deployment and Mounting), operation outside this range will reduce the battery service life With lithium batteries: 1 year, typical use

Memory

16 MB

Dimensions

Sensor: 470 x 191 x 121 mm (18.5 x 7.5 x 4.75 in.)
Cable length: 3 m (9.8 ft)
Mote: 16.2 x 8.59 x 4.14 cm (6.38 x 3.38 x 1.63 inches)

Weight

Sensor and cable: 1.332 kg (2 lb, 15 oz)
Mote: 223 g (7.87 oz)

Materials

Sensor: Polycarbonate wind cups, sealed stainless steel bearing, UV-resistant ABS wind vane and black-anodized aluminum anemometer arm
Mote: PCPBT, silicone rubber seal

Environmental Rating

Sensor: Weatherproof
Mote: IP67, NEMA 6

Compliance Marks

Federal Communication Commission     RXW-WCF-900
European Union Compliance     RXW-WCF-868
Australia and New Zealand Complicance     RXW-WCF-922

The following are associated resources for this product. In general users of this product can gain insight into its possible use by utilizing the resources below. Our user forum can also be a valuable resource for questions, use cases and general feedback. Share with us today, here!

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