| Description |
| Sensor type | continuous rotation potentiometric wind direction vane |
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| Applications | wind resource assessment |
| meteorological studies |
| environmental monitoring |
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| Sensor range | 360° mechanical, continuous rotation |
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| Instrument compatibility | all NRG loggers |
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| Output signal |
| Signal type | Analog DC voltage from conductive plastic potentiometer, 10K ohms |
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| Transfer function | Output signal is a ratiometric voltage |
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| Accuracy | potentiometer linearity within 1% |
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| Dead band | 8° Maximum, 4° Typical |
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| Output signal range | 0 V to excitation voltage (excluding deadband) |
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| Response characteristics |
| Threshold | 1 m/s (2.2 miles per hour) |
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| Power requirements |
| Supply voltage | Regulated potentiometer excitation of 1 V to 15 V DC |
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| Installation |
| Mounting | onto a 13 mm (0.5 inch) diameter mast with cotter pin and set screw |
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| Tools required | 0.25 inch nut driver, petroleum jelly, electrical tape |
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| Environmental |
| Operating temperature range | -55 °C to 60 °C (-67 °F to 140 °F) |
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| Operating humidity range | 0 to 100% RH |
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| Lifespan | 50 million revolutions (2 to 6 years normal operation) |
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| Physical |
| Connections | 4-40 brass hex nut/post terminals |
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| Weight | 0.14 kg (0.3 pounds) |
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| Dimensions | 21 cm (8.3 inches) length x 12 cm (4.3 inches) height |
| 27 cm (10.5 inches) swept diameter |
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| Materials |
| Wing | black UV stabilized injection molded plastic |
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| Body | black UV stabilized static-dissipating plastic |
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| Shaft | stainless steel |
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| Bearing | stainless steel |
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| Boot | protective PVC sensor terminal boot included |
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| Terminals | brass |