The sensor has a range of 0-150 mph with an accuracy of 2% and a starting threshold of 1.0 mph. A unique feature of the Model 013A is a built-in ice skirt which allows sensor operation with a 2" ice load. The sensor is supplied with an extremely robust aluminum cup assembly which has a distance constant of less than 15 feet.
Maximum operational reliability is ensured by the use of a sealed magnetic reed switchwhich produces a series of contact closures at a rate proportional to wind speed. The pulsed output of the sensor lends itself to applications involving both digital and analog measurement systems.