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Series 2000-SP Magnehelic® Differential Pressure Gages

Differential Pressure Gage: 0-1" w.c.


Item# 2001-SP

In stock

Lead Time (If not in stock): 2 weeks
Differential Pressure Gage: 0-1" w.c. 2001-SP 2001-SP

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

  • Easy to read gage through undistorted plastic face permits viewing from far away
  • Patented design provides quick response to pressure changes means no delay in assessing critical situations
  • Durable and rugged housing and high-quality components combine to provide long service life and minimized down-time
  • High accuracy option is twice as accurate as the standard Magnehelic® gage

2001-SP Model Options

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Pressure Range
Accuracy Value
Pressure Type
Pressure Port Size
Accuracy Class
Dial Size
Additional Features

  • Accuracy ±2% of full scale (±3% on - 0)
  • Mounting Orientation Diaphragm in vertical position. Consult factory for other position orientations.
  • Pressure Limits 35 psig (2.41 bar)
  • Process Connections 1/8" female NPT duplicate high and low pressure taps - one pair side and one pair back.
  • Service Air and non-combustible
  • Size 4" (101.6 mm) diameter dial face.
  • Temperature Limits 20 to 140°F. (-6.67 to 60°C).
  • Weight 1 lb 2 oz (510 g)
  • Wetted Materials Consult factory.
  • Housing Die cast aluminum case and bezel
  • Overpressure Relief plug opens at approximately 25 psig (1.72 bar)
  • Standard Accessories Two 1/8" NPT plugs for duplicate pressure taps

Series 2000-SP Magnehelic® Differential Pressure Gage has a bright red LED on the right of the scale showing when setpoint is reached. Field adjustable from gage face, unit operates on 12-24 VDC. Requires MP or HP style cover and bezel.


  • Filter monitoring
  • Air velocity with Dwyer® pitot tube
  • Blower vacuum monitoring
  • Fan pressure indication
  • Duct, room or building pressures
  • Clean room positive pressure indication
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