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Low Differential Pressure, Digital Pressure Gauge

Digimag Differential Pressure Gage 0-0.100 INWC, 4-20mA


Item# DM-001

In stock

Lead Time (If not in stock): 8 Days
Digimag Differential Pressure Gage 0-0.100 INWC, 4-20mA DM-001 DM-001

Dwyer Instruments is now a DwyerOmega brand. We're working together to bring you the best products in a single shopping experience.

  • Reduced installation time through zero and span controls that provides quick and easy calibration
  • Fast and easy setup and calibration with push-button zero and span controls
  • Immediate corrective action can be taken by local alerts via the easy-to-read LCD display
  • Applications include: differential pressure across filters, fan control, static pressures in ducts of buildings, and room pressurization monitoring

DM-001 Model Options

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Edit these specs to order a different model. Not all combinations are valid. Options compatible with previous selections will be in bold.

*Highlighted options are not compatible. Please select a different combination.

Pressure Port Type
Pressure Port Size
Power Source
Accuracy Value
Number of Digits
Electrical output
Additional Features
Pressure Range
Pressure Type
Accuracy Class
Signal Output
Dial Size
Pressure Port

  • Stability < ±1%/year FSO
  • Weight 7.04 oz (200 g).
  • Accuracy Value ±1% FSO for all ranges except 0.25 in w.c. @ ±2% FSO, and ranges at or below ±0.1 in w.c. @ ±4% FSO.
  • Current Consumption 21 mA max
  • Housing Polycarbonate
  • Ingress Protection NEMA 4X (IP66).
  • Loop Resistance 0 to 1250 Ω max
  • Output Signal 4-20 mA (2-wire)
  • Pressure Limits Ranges > 1 in w.c.: 6 psi max operation, 6 psi burst; Ranges = 1 in w.c.: 3.6 psi max operation, 6 psi burst
  • Service Air and non-combustible, compatible gases
  • Supply Voltage 10-35 VDC (2-wire)
  • Temperature Limits '-20 to 70°C (-4 to 158°F)
  • Thermal Effect '0.036% FS/°C (0.02% FS/°F)
  • Zero and Span Adjustments Push-button

Dwyer Instruments is now a DwyerOmega product brand


The Series DM Digimag® Differential Pressure Transmitter senses the pressure of air and compatible gases and sends a standard 4-20 mA output signal. The DM housing is specifically designed to mount in the same diameter cutout as a standard Magnehelic® gage. A wide range of models are available factory calibrated to specific ranges. The polycarbonate molded housing features integral pressure connections, which reduces installation time. Digital push-button zero and span simplify calibration over typical turn-potentiometers. A single push-button allows field selection of 4 to 6 engineering units, depending on the range.

Product Applications

  • Differential pressure across filters
  • Fan control
  • Static pressures in ducts or buildings
  • Room pressurization monitoring


Display Units: psi, kg/cm², bar, in Hg, ft w.c., kPa, MPa, %FS, in w.c., mbar, cm w.c., mm Hg, or oz/in² (choices depend on range).
Test Mode:Simulates input over the range without pressuring to easily test switches and transmitter output feature.
Fail-safe: For sensor failure, over pressure, high temperature limit, low temperature limit, or keypad short. User chooses if relay is de-energized, energized, or no action. With transmitter option, user chooses an output of 3.6 mA 22 mA, or no action.
Alternation: Selectable alternation of set points between the relays for even wear on duplex pump applications.
Versatile Compact Package: Can replace a separate gage, two switches, and a transmitter in a system saving, money, installation time, and panel space.
Fully Programmable:To meet simple or complex application needs.
Weatherproof Housing: Ideal for a wide variety of applications with panel mount, flush mount, or pipe mount ability.
DS-DM-dims DS-DM-wiring DS-DM-order
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