DM-1128 is a series DM-1000 DigiMag® digital differential pressure gauge monitors the pressure of air and compatible gases just as its famous analog predecessor the Magnehelic® differential pressure gauge. The 4-digit LCD can display readings in common English and metric units so conversions are not necessary. The simplified four button operation reduces set up time and simplifies calibration with its digital push-button zero and span. Typical applications include differential pressure across filters, fan control, static pressures in ducts or buildings and room pressurization monitoring.