Most of the instruments available in market are made of plastic. These, though efficient under laboratory conditions, often give away for industrial applications, braking the blades / shafts.

ACD Rotating Vane Sensor is totally made of metal parts and can stand to rigorous industrial conditions. It consists of a Chemically Etched Stainless Steel Turbine, fitted on a Brass shaft with Stainless Steel pins, which is pivoted on re-enforced Jewel Bearings, making it extremely sensitive to minute changes in the air-flow. All other parts are of Aluminum.

Non-contact transducer is insensitive to vibrations, dust, temperature, humidity, and ultrasonic radiation.

Optional facility for air temperature measurement can be incorporated in the same instrument.