The multi-channel anemomaster 1550/1560 monitor real-time air quality. A 1550 unit has 64 channels present for air velocity. Up to 5 units can cascade together and make 320 channels, which forms a larger system when a computer is added to it for purpose of control. Different models with a varying number of channels are used for monitoring air velocity; air velocity and temperature; air velocity, temperature, and humidity; and analog output. The models can be used to monitor ventilation in energy efficient buildings, assess cooling efficiency in electronic devices, aerodynamics research, production control and development. It is possible to add more modules whenever necessary.