The document describes the ACM-AVM-2614 air volume measurement meter. It measures air flow volume, temperature, and velocity using a hot wire probe. It has applications in HVAC, clean rooms, and the automotive industry. The meter uses the pitot-tube principle and features a portable, easy-to-use design with a protective PVC or FRP casing. It has a large LCD display, data logging, printing capabilities, and a rechargeable battery for portable use. Measurements include air flow from 150-3000 cubic meters per hour with 5% accuracy.