Select the Magnehelic® Differential Low Pressure Gauges for a versatile low
differential pressure gage with a wide choice of 81 models and 27 options to choose
from. Using Dwyer’s simple, frictionless Magnehelic® gauge movement, it quickly
indicates air or non-corrosive gas pressures--either positive, negative (vacuum) or
differential. The design resists shock, vibration, over-pressures and is weatherproof
Air flow measurement of fans and blowers, monitoring filters, monitoring combustion equipment, etc.