Patent ID: 7415901

Claim:
A probe assembly system for extracting an air sample from a flowing air stream located inside of a building's air handling unit and providing the air sample to a multipoint sampling system through a system tube, comprising: a sampling tube which is at least partially immersed in said flowing air stream and is adapted to enable said air sample to pass through the sampling tube to the system tube; at least one sensor assembly mounted to the sampling tube and at least partially located in the building's air handling unit that is adapted to sense one or more characteristics of said flowing air stream and generate a signal representative of the one or more sensed characteristics, where the signal is communicated to the multipoint air sampling system; and a sensor chamber connected to the sampling tube and to the system tube that is adapted to enable at least a second sensor assembly disposed within the sensor chamber to be exposed to the air sample to sense one more characteristics of the flowing air stream.