High performance wind sensor (speed and direction) with an ice-resistant coating ; height 40cm, length 57cm, mounted on a 34mm diameter pipe. Propeller anemometer with 4 helicoid blades molded of polypropylene, 14cm diameter, AC output with 3 pulses per revolution. 38cm turning radius vane, 0,25% linearity potentiometer with a life expectancy of 50 million revolutions. Operates at temperatures within the -50 to 50°C range.