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  • Air and non-combustible, compatible gases
  • Ranges in W.C. or Pa
  • Ranges down to 0.1 in w.c. (25 Pa),
  • Accuracy:
    • ±0.25% FS for ±0.4in (100 Pa) and ±0.5in (125 Pa)
    • ±0.5% FS for ±0.25in (60 Pa)
    • ±1% FS for ±0.1in (25 Pa)
  • Push button calibration


The Dwyer 616KD-LR Differential Pressure Transmitter is designed for simplicity, making it the ideal choice for installers and maintenance professionals. These low range instruments not only alleviate cumbersome turn pots typically found in most transmitters, but eliminate entirely the need to span the instruments during calibration. With single digital push button, both ZERO AND SPAN are calibrated properly, nothing else is required. No additional reference pressure sources or separate calibration devices are necessary.

Applications for the 616KD-LR

  • Air handlers
  • Duct pressure
  • Variable air volume
  • Filter monitoring