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HVAC Manometers and Micromanometers

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422-5 422-5

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Dwyer 422-5 - Inclined/Vertical Manometer, 0-1" w.c. Inclined and 1-5" w.c. Vertical
  • Type (Manometer): Inclined Tube
  • Max Pressure: 5 IN of H2O
  • Type of Input: N/A
  • Engineering Units (HVAC): inch H2O
  • Measurement : Differential
  • Min/Max/Hold: N/A

Your Price: $1,523.60

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424-10 424-10

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Dwyer 424-10 - Inclined/Vertical Manometer
  • Type (Manometer): Inclined Tube
  • Max Pressure: 10 IN of H2O
  • Type of Input: N/A
  • Engineering Units (HVAC): inch H2O
  • Measurement : Differential
  • Min/Max/Hold: N/A

Your Price: $2,767.45

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424-132MM 424-132MM

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Dwyer 424-132MM - Inclined/Vertical Manometer, 0-50 mm w.c. Inclined and 52-132 mm w.c. Vertical
  • Type (Manometer): Inclined Tube
  • Type of Input: N/A
  • Engineering Units (HVAC): cmH2O, mmH2O
  • Measurement : Differential
  • Min/Max/Hold: N/A
  • Pressure and Leak Test Option: N/A

Your Price: $2,266.15

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424-250MM 424-250MM

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Dwyer 424-250MM - Inclined/Vertical Manometer Durablock Dwyer 424 Series
  • Type (Manometer): Inclined Tube
  • Type of Input: N/A
  • Engineering Units (HVAC): cmH2O, mmH2O
  • Measurement : Differential
  • Min/Max/Hold: N/A
  • Pressure and Leak Test Option: N/A

Your Price: $2,767.45

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424-5 424-5

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Dwyer 424-5 - Inclined/Vertical Manometer
  • Type (Manometer): Inclined Tube
  • Max Pressure: 5 IN of H2O
  • Type of Input: N/A
  • Engineering Units (HVAC): inch H2O
  • Measurement : Differential
  • Min/Max/Hold: N/A

Your Price: $2,266.15

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475-000-FM 475-000-FM

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Dwyer 475-000-FM - Handheld Digital Manometer, 0-1.000" w.c. (.2491 kPa), max. pressure 5 psig.
  • Type (Manometer): Digital
  • Max Pressure: 1 IN of H2O
  • Type of Input: N/A
  • Engineering Units (HVAC): inch H2O, kPa, psi
  • Measurement : Differential
  • Min/Max/Hold: N/A

Your Price: $432.65

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475-00-FM 475-00-FM

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Dwyer 475-00-FM - Handheld Digital Manometer, 0-4.000" w.c. (0.996 kPa), max. pressure 5 psig.
  • Type (Manometer): Digital
  • Max Pressure: 4 IN of H2O
  • Type of Input: N/A
  • Engineering Units (HVAC): inch H2O, kPa, psi
  • Measurement : Differential
  • Min/Max/Hold: N/A

Your Price: $325.50

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475-00T-FM-AV 475-00T-FM-AV

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Dwyer 475-00T-FM-AV - Air Velocity Kit with Digital Manometer and Telescoping Pitot Tube
  • Safety Approval: CE, FM
  • Product Weight: 306 GRAMS (0.675 LBSWhat's This?)
  • Shipping Weight: 1 LBS
  • Country of Origin: United States

Your Price: $739.45

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475-0-FM 475-0-FM

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Dwyer 475-0-FM - Intrinsically Safe Handheld Digital Manometer, 0-10.00" w.c. (2.491 kPa), max. pressure 5 psig.
  • Type (Manometer): Digital
  • Max Pressure: 10 IN of H2O
  • Type of Input: N/A
  • Engineering Units (HVAC): inch H2O, kPa, psi
  • Measurement : Differential
  • Min/Max/Hold: N/A

Your Price: $325.50

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475-0-FM-AV 475-0-FM-AV

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Dwyer 475-0-FM-AV - Air Velocity Kit, 0-10.00" w.c. (2.491 kPa), max. pressure 5 psig
  • Type (Manometer): Digital
  • Max Pressure: 10 IN of H2O
  • Type of Input: N/A
  • Engineering Units (HVAC): kPa, psi
  • Measurement : Differential
  • Min/Max/Hold: N/A

Your Price: $582.40

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475-0T-FM-AV 475-0T-FM-AV

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Dwyer 475-0T-FM-AV - Air Velocity Kit, 0-10" w.c. (2.491 kPa), w/ Telescoping Pitot Tube
  • Safety Approval: CE, FM
  • Product Weight: 306 GRAMS (0.675 LBSWhat's This?)
  • Shipping Weight: 1 LBS
  • Country of Origin: United States

Your Price: $747.25

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475-1-FM-AV 475-1-FM-AV

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Dwyer 475-1-FM-AV - Air Velocity Kit, 0-20.00" w.c. (4.982 kPa), max. pressure 10 psig
  • Type (Manometer): Digital
  • Max Pressure: 20 IN of H2O
  • Type of Input: N/A
  • Engineering Units (HVAC): inch H2O
  • Min/Max/Hold: Yes
  • Pressure and Leak Test Option: N/A

Your Price: $582.40

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Recommended for you

HVAC Manometers and Micromanometers

Manometers are used to measure low differential pressures and used in applications such as adjusting furnace blower fan speed. Modern day digital manometers originated from the inconveniences of the U-tube manometers. U-tube manometers use a glass, U shaped, tube filled with water or other fluid of known specific gravity, such as mercury. Hoses are connected to each end. As differential pressure is applied, the fluid displaces, creating a measurable height difference between columns.

Key Features to Consider in Selecting Manometers
  • Measurement range
  • Ability to change to many different measurement units
  • Min/Max/Data Hold feature
  • Datalogging
  • Zero function for offset correction
  • Kits containing a carrying case and hoses
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