Part Numbers
RXW-WCF-900 • RXW-WCF-868 • RXW-WCF-922 • RXW-WCF-921
HOBOnet Wind Speed and Direction Sensor
Important Information
A complete system requires at least one HOBO RX3000 Remote Monitoring Station, a HOBOnet Wireless Manager, and a HOBOnet Wireless Sensor, OR one HOBO MicroRX Station (which has an integrated HOBOnet Wireless Manager) and a HOBOnet Wireless Sensor. HOBOnet Wireless Repeaters (RXW-RPTR-xxx or RXW-RPTR-B-xxx) can be added to extend the range.
Overview
A wireless sensor that works with HOBOnet to record wind speed, wind gust, and wind direction. HOBOnet wireless sensors communicate data directly to the HOBO RX3000 or the HOBO MicroRX 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.
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 or 336 data channels per HOBO RX station
- 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
Specifications
|
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, |
±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 |
Unit vector averaging used; vector components for each wind measurement are calculated every three seconds for duration of logging interval |
|
Operating Temperature Range |
-25° to 60°C (-13° to 140°F) with rechargeable 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 |
|
Wireless Data Standard |
IEEE 802.15.4 |
|
Radio Operating Frequencies |
RXW-WCF-900: 904–924 MHz |
|
Modulation Employed |
OQPSK (Offset Quadrature Phase Shift Keying) |
|
Data Rate |
Up to 250 kbps, non-adjustable |
|
Duty Cycle |
<1% |
|
Maximum Number of Motes |
Up to 50 wireless sensors or 336 data channels per one HOBO RX station |
|
Logging Rate |
1 minute to 18 hours |
|
Number of Data Channels |
4 |
|
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.) |
|
Weight |
Sensor and cable: 1.332 kg (2 lb, 15 oz) |
|
Materials |
Sensor: Polycarbonate wind cups, sealed stainless steel bearing, UV-resistant ABS wind vane and black-anodized aluminum anemometer arm |
|
Environmental Rating |
Sensor: Weatherproof |
|
Compliance Marks |
 RXW-WCF-921
|
Compatible items
Tripod Parts, Kits and Masts
Batteries
Grounding Wires
Compliance Certificates
Web-based Monitoring Systems - via remote communication
RX2105-900
RX2105-868
RX2105-922
RX2105-921
RX2106-900
RX2106-868
RX2106-922
RX2106-921
Communications
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