The Air Flow And Velocity Transmitter has sensors having an electrical transmission output for remote indication of air flow rate & velocity. Some goods contain LEDs, whereas others are used in clean room systems. Some of the principal applications of this transmitter include air management in drying operations, fan supply and exhaust tracking, exhaust stack flow monitoring, HVAC air velocity measurements, clean room ventilation monitoring and others. It employs a hot mass flow sensor that is appropriate for filthy air flow applications. This Transmitter is appropriate for a variety of HVAC measurement and control applications, notably in whole building control and energy management systems.