video corpo

digital pressure gauge / bellows / for HVAC / portable
HD21x4 series



  • Display:


  • Technology:


  • Applications:

    for HVAC

  • Other characteristics:


  • Pressure:

    Max.: 2,000 mbar (29.01 psi)

    Min.: -2,000 mbar (-29.01 psi)


The HD21X4 series is manufactured by Delta OHM, and is a range of measuring unit that is integrated with huge LCD display. The absolute, relative and differential pressure and temperature are measured by utilizing an internal module. It can also utilized on the TP704 and TP705 series Delta Ohm probes with the support of PP471 module as an interface.

The barometric pressure is measured by the HD2114B.0 and HD2114B.2 internal module, which the temperature is detected with penetration, immersion or air Pt100 probes, and with SICRAM module or direct 4 wire probes. The temperature probe comes with a SICRAM module and factory calibration data located within the instruments.