Differential Pressure Transmitter – Huba 403 Series


  • Special development for optimize of combustion mixture in gas boilers
  • With the special diaphragm geometry inherently stable due to homogeneous manufacture with the 2 component injection moulding process (plastic silicone)
  • Ideal dimensioning for high sensitivity and with long term stability
  • Excellent repeatability even in the lower pressure range (< 20 Pascal)

The differential pressure transmitter, with its unique proven ceramic lever technology, has adjusted, temperature-compensated sensor signals, available as a voltage output. The (VDC) voltage output is an amplified, linear signal suitable for direct processing in electronic control systems.


Medium Flammable gas
Pressure range 0 … 3 – 8 mbar
Output 0.5 … 4.5 V
Accuracy < 0.5% fs
Electrical connection Connector RAST 2.5
Pressure connection Hose connector Ø 6.2 mm
Snap-mounting or mounting bracket


Huba Control 403 Differential pressure transmitter 0 … 3 – 8 mbar-DpstarGroup