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Alnor is the leading manufacturer of test and measurement instruments used worldwide by HVAC Contractors, Industrial Hygienists, Lab Managers, Plant Engineers  and Calibration Technicians.

AirGard® Air Flow Monitors

Alnor AirGard 350-CEM and 315-BSC Air Flow Monitors indicate safe air flows for bio-safety cabinets and other critical environments by warning the user of unsafe low face velocities. Both feature wide velocity ranges to accurately measure air flow across HEPA filters or exhaust ducts and have audible and visual alarms with relay output. The 315-BSC monitor indicates three flow levels. The 350-CEM monitor adds a digital bar graph as a trend analysis tool and also alarms if flow is too low or too high.