Onset
Ultrasonic Wind Speed & Direction Smart Sensor
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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.
Documentation
Quick Start GuideUser Manual
Highlighted Features
- 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
Applications
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
Specifications
| 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) | |
| Measurement Definition |
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) | |
| Environmental Rating | Weatherproof | Weatherproof | |
| Housing | Polyacetal | Polyacetal | |
| Dimensions |
Sensor length: 380 mm (14.96 inches) Sensor head diameter: 60 mm (2.36 inches) Sensor rod diameter: 16 mm (0.63 inches) |
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| 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) |