With a long-operating-life of more than 100,000 cycles, the AFM module is IP20-rated and NEMA 1 certified. The small-size AFM sensor is only 34×17.5×7.5mm with an operating temperature range from -20 to +50°C.
Low-cost airflow monitor modules from Orion Fans & Digi-Key
Orion Fans AFM series airflow module provides a cost-effective alternative for indicating airflow in AC and DC fan/blower applications. The AFM module can operate an optical LED or audible-alarm when airflow falls below 8.2ft/s due to fan filter clogs or interference with the fan blade. Field retrofittable, the AFM airflow sensor installs perpendicular to the front or intake side of the fan and mounts via clip or clamp to any grill.