Compact and rugged with no moving parts, this ultrasonic sensor is able to measure very low wind speeds, down to 0.4 m/s (compared to 1.0 m/s for our mechanical sensors). As with all Onset Smart Sensors, this sensor is plug-and-play with HOBO stations (RX3000, RX2100, USB Micro Station, H22, and the U30-NRC).
Because it is automatically recognized by HOBO stations, there is no need for programming, resulting in fast and easy deployment. The sensor is powered by its own built-in solar panel.
Interested in wireless sensors? The wireless Wind Speed & Direction sensor is available for use with the HOBOnet Field Monitoring System.
DocumentationQuick Start Guide
- Compact and rugged with no moving parts
- Plug-and-play with HOBO stations
- No starting threshold – suitable for low wind speeds
- No wind direction dead band – accurate wind data in all directions
- Powered by its own built-in solar panel
- Affordably priced
In what environment does this sensor operate?
This sensor operates in an outdoor environment.
What measurements does this sensor support?
The S-WCG-M003 sensor supports the following measurement: Wind
|Specification||Wind Speed/Gust||Wind Direction|
|Measurement Range||0 to 41.16 m/s (0 to 92.07 mph)||0 to 359 degrees|
|Accuracy||±0.8 m/s (1.79 mph) or ±4% of reading, whichever is greater||0.2 to 3 m/s (0.44–6.7 mph): ±4 degrees <br> >3 m/s (6.7 mph): ±2 degrees|
|Resolution||0.4 m/s (0.89 mph)||1 degree (0 to 359 degrees)|
Wind speed readings are taken 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. See Measurement Operation.
|Unit vector averaging is used; vector components for each wind measurement are calculated every three seconds for the duration of the logging interval (see Measurement Operation)|
|Operating Temperature Range Without Icing||-15°C to 55°C (5°F to 131°F)||-15°C to 55°C (5°F to 131°F)|
Sensor length: 380 mm (14.96 inches)
Sensor head diameter: 60 mm (2.36 inches)
Sensor rod diameter: 16 mm (0.63 inches)
|Weight||200 g (7 oz)||200 g (7 oz)|
|Power Supply||Photovoltaic panel, LIFEP04 3.2 V -600 mAh battery||Photovoltaic panel, LIFEP04 3.2 V -600 mAh battery|
|Bits per Sample||8 for each channel, 24 total||8 for each channel, 24 total|
|Number of Data Channels*||3||3|
|Measurement Averaging Option||Automatic averaging (see Measurement Operation)||Automatic averaging (see Measurement Operation)|
|Cable Length Available||3 m (9.8 ft)||3 m (9.8 ft)|
|Length of Smart Sensor Network Cable*||0.5 m (1.6 ft)||0.5 m (1.6 ft)|