Series 2000 Magnehelic Differential Pressure Gages

Versatile low differential pressure gage, choice of 81 models and 27 options, indicates air or noncorrosive gas pressures

Starting At
$110.00 CAD
This SKU has 1 in stock for immediate delivery!
See our 'In Stock' list below!

Configure   Request Quote

Can We Help You?


Our product experts are here to help you find the right solution for your application!

Select the Series 2000 Magnehelic® Gage for a versatile low differential pressure gage with a wide choice models and options to choose from.  Using Dwyer’s simple, frictionless Magnehelic® gage movement, it quickly indicates air or noncorrosive gas pressures - either positive, negative (vacuum) or differential. The design resists shock, vibration, over-pressures and is weatherproof to IP67.

Note: For applications with high cycle rate within gage total pressure rating, next higher rating is recommended.  See Medium (MP) and High (HA) pressure options.  Low pressure options are available as special options.  Contact us for more details.

• Easy to read gage (through an undistorted plastic face) permits viewing from far away
• Patented design provides quick response to pressure changes, which means no delay in assessing critical situations
• Durable, rugged housing plus high-quality components combine to provide long-service life and minimized downtime

Service* Air and non-combustible, compatible gases (natural gas option available).
Wetted Materials Consult factory
Housing Die cast aluminum case and bezel, with acrylic cover, Exterior finish is coated gray to withstand 168 hr salt spray corrosion test
Accuracy 2% (-HA model 1) of FS ( 3% (-HA 1.5%) on -0, -100 Pa, -125 Pa, -10 mm and 4% (-HA 2%) on -00, -60 Pa, -6 mm ranges), throughout range at 70F (21.1C)
Pressure Limits -20 in Hg - 15 PSIG (-0.677 bar - 1.034 bar); MP option; 35 PSIG (2.41 bar), HP option; 80 PSIG (5.52 bar)
Enclosure Rating IP67
Overpressure Relief plug opens at approximately 25 PSIG (1.72 bar), standard gages only. See Overpressure Protection note on Catalog page
Temperature Limits 20F - 140F (-6.67C - 60C). -20F (-28C) with low temperature option
Size 4 in (101.6 mm) diameter dial face
Mounting Orientation Diaphragm in vertical position. Consult factory for other position orientations
Process Connections 1/8 in female NPT duplicate high and low pressure taps - one pair side and one pair back
Weight 1 lb 2 oz (510 g); MP & HP 2 lb 2 oz (963 g)
Standard Accessories Two 1/8" NPT plugs for duplicate pressure taps, two 1/8" pipe thread to rubber tubing adapters and three flush mounting adapterswith screws. (Mounting and snap ring retainer substituted for three adapters in MP & HP gage accessories
Agency Approvals** Meets the technical requirements of EU Directive 2011/65/EU (RoHS II)
*May be used with hydrogen. Order a Buna-N diaphragm. Pressures must be less than 35 PSI
**-SP models not RoHS approved

Pressure Options:
• MP: Medium Pressure Option
• HP: High Pressure Option

• ASF: Adjustable Signal Flag
• SP: Setpoint Indicator

Mounting Plate:
• AHU1: Furnished with attached surface mounting plate
• AHU2: Furnished with attached surface mounting plate and including A-481 installer kit (2 plastic static pressure tips and 7 ft of PVC tubing)

Scale Overlays Red (R), Green (G), Yellow (Y), or Mirrored (M)

• CB: Chrome bezel option: A chrome plated aluminum bezel for an aesthetically pleasing finish when mounting on metal surfaces such as control panels.
• SB: Stainless steel bezel option: 304 stainless steel electro polished Ra 16 finished bezel

Calibration Certificate:
• FC: Factory calibration certificate

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

Protects the Magnehelic and Photohelic instruments in all applications
Normally ships in 1-2 Weeks
Starting At
$235.00 CAD
Kit for the Magnehelic gages that includes a plastic carrying case, 9 ft of 3/16 in ID rubber tubing, standard bracket, and terminal tube with holder
Normally ships in 1-2 Weeks
$79.00 CAD
Air filter gage accessory kit adapts any standard Magnehelic gage for use as an air filter gage
Normally ships in 1-2 Weeks
$69.00 CAD
Mounting Brackets
Allows Magnehelic to be conveniently installed on horizontal or vertical1-1/4 in to 2 in pipes
Normally ships in 1-2 Weeks
$56.00 CAD
Magnehelic gage panel mounting flange
Normally ships in 1-2 Weeks
$27.00 CAD
Aluminum stand-hang bracket for Magnehelic gages
Normally ships in 1-2 Weeks
$32.00 CAD
Flat aluminum bracket for flush mounting the Magnehelic gages
Normally ships in 1-2 Weeks
$57.00 CAD
Flush mount kit for Magnehelic gages
Normally ships in 1-2 Weeks
$52.00 CAD
Aluminum surface mounting plate for Magnehelic gages
Normally ships in 1-2 Weeks
$17.00 CAD
Flush mount surface mounting bracket for Magnehelic gage
Normally ships in 1-2 Weeks
$76.00 CAD
Surface mounting bracket for use with medium pressure (-MP) or high pressure (-HP) Magnehelic models only
Normally ships in 1-2 Weeks
$99.00 CAD
Brass safety relief valve protects gages against over pressure
Normally ships in 1-2 Weeks
$90.00 CAD
Plastic 3-way vent valve with 80 PSI rating
Normally ships in 1-2 Weeks
$40.00 CAD