Model A2G-05

Eco differential pressure gauge

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  • For dry, clean, non-aggressive gases, air
  • Monitoring of blowers and ventilators
  • Filter monitoring via differential pressure
  • Positive overpressure in clean rooms
  • Positive and negative pressure in isolation chambers
  • Ideally for installations with space limitations

Product Features

  • Zero adjustment in front
  • Simple mounting and removal
  • Compact construction with a short case depth
  • Scale ranges from 0.2 InWC (50 Pa) to 50 InWC (12,500 Pa)


Per EN 837-3 and HVAC regulations

Nominal size in inches
4 ½”

± 3.0 % of full span
± 5.0 % of full span ranges < 0.5 InWC (125 Pa)

0 / 0.2 InWC (50 Pa), up to 0 / 50 InWC (12,500 Pa)

Compound ranges
Starting from -0.1 / +0.1 InWC (-25/+25 Pa), up to -6 / +6 InWC (-1,500 Pa...+1,500 Pa)

Pressure units
InWC (standard)
Other available units: kPa, Pa, mmWC, cmWC, mmHg

Pressure limitations
Steady: full-scale value
Fluctuating: full-scale value

Overpressure safety
80 InWC (20 kPa)

Maximum working pressure (static pressure)
80 InWC (20 kPa)

Temperature limitations
Ambient: -22 °F...176 °F (-30oC... + 80oC)
Media: 3 °F...122 °F (-16oC... + 50oC)

Temperature error
Additional error when temperature changes from reference temperature of 68°F (20°C) +0.5% of span for every 18°F (10°K) rising or falling.

Ingress protection
NEMA 3 (IP 54 per EN 60529 / IEC 529)

Process connection
Plastic, back-mounted
Two molded universal hose barb fittings, angled
For 1/8" / 3/16" or 1/4" hose ID

Separating diaphragm
Silicone rubber

Frictionless magnetic transmission

Aluminum white, scale of approx. 90 degrees of angle

Black plastic

Mounting ring
Plastic, including 3 mounting screws

Polycarbonate, UV stabilized

NEMA 4 (IP 66) ingress protection
Red mark pointer
Internationally recognized traceable calibration certificates
Screw retained built-in version

Eco differential pressure gauge
  • Eco differential pressure gaugeMeasuring instruments for ventilation and air-conditioning
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