NRG 200P
WMI offers NRG windvanes for cost-sensitive projects. The threshold response of these vanes is 1 m/s and the deadband varies from 4 to 8 degrees.

The thermoplastic and stainless steel components resist corrosion and contribute to a high strength-to-weight ratio.

The vane is directly connected to a precision conductive plastic potentiometer located in the main body. An analogue voltage output directly proportional to the wind direction is produced when a constant DC excitation voltage is applied to the potentiometer.

Vector 200P
Higher value projects normally demand the improved accuracy, longer life and smaller dead-band of a Vector Instruments wind vane. The threshold response of these vanes is 0.6 m/s and the deadband is only 3.5 degrees.

Construction from anodised aluminium alloys and stainless steels for exposed parts. Combined with a hard plastic (upper) bearing and precision ball-races, the result is an instrument suitable for continuous exposure to the weather, with a long service interval.