HOBOnet Wind Speed and Direction Sensor

Name: HOBOnet Wind Speed and Direction Sensor
Brand: Hydromatics Limited
Availability: InStock

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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

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-921: 921 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

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.)

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

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