Starting at $770.00
  • Call for availability



  • Ranges from 0 to 25 in w.c.,
  • ±1.0% Accuracy
  • NEMA 4 (IP56) Enclosure
  • 2-Wire
  • Versatile for liquid or gas


The Dwyer 647 Differential Pressure Transmitter monitor differential pressure in air/liquid flow systems, HVAC automation, pneumatic systems and process control with the SERIES 647 Wet/Wet Differential Pressure Transmitter. Units are temperature compensated and provide a 4 to 20 mA output signal which can be interfaced with chart recorders, data loggers and computerized monitoring and control systems.

Applications for the 647 include:

  • Flow
  • Process control
  • HVAC automation
  • Pneumatic systems