
The Air Flow Indicator and Alarm utilizes a thin, field trimmable vane to sense the air flow rate in pipe sizes between three to four inches. The DAFA is battery powered to provide versatility of installation location and offers a yellow LED to indicate a low battery. In addition, the battery can last up to five years when in a steady state. An 85 dB audible buzzer alternates with a bright red LED to alert users when the air flow rate drops below the desired rate.
To learn more about the Series DAFA, please visit http://www.dwyer-inst.com/Product/AirQuality/FlowSensors/SeriesDAFA