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Dwyer Instruments: Series AVFS, Air Flow Switch

Monitors Flow in Ducts with Contact Output and Local LED Indication

The SERIES AVFS Adjustable Air Flow Switch is specifically designed to monitor air flow in ducts and provides a 3 A contact output to indicate a change or loss of flow. The AVFS provides a ±5% set-point repeatability across a full scale range of 1-10 m/s (197-1969 fpm) and includes a mounting bracket for quick duct mounting.

SERIES AVFS Applications

  • Fan monitoring
  • Filter monitoring
  • Damper feedback
  • Air handlers