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Dwyer HVAC Manometers and Micromanometers

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477AV-3 477AV-3

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Dwyer 477AV-3 - Handheld Digital Manometer, 0-200" wc, Air Velocity/Flow Modes
  • Type (Manometer): Digital
  • Max Pressure: N/A
  • Type of Input: N/A
  • Engineering Units (HVAC): hPa, inch Hg, kPa, mbar, mmHg, psi
  • Min/Max/Hold: Yes
  • Pressure and Leak Test Option: N/A

Your Price: $232.95

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1211-200 1211-200

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Dwyer 1211-200 - Slack Tube Manometer, 100-0-100" w.c.
  • Type of Input: N/A
  • Engineering Units (HVAC): cmH2O
  • Measurement : Differential, Vaccum
  • Min/Max/Hold: N/A
  • Pressure and Leak Test Option: Yes
  • Unique Features: 100-0-100 cm Range

Your Price: $235.30

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1211-30 1211-30

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Dwyer 1211-30 - Slack Tube Manometer, Range 15-0-15" w.c., 15 oz Water or Mercury Required.
  • Max Pressure: 15 IN of H2O
  • Type of Input: N/A
  • Engineering Units (HVAC): inch H2O, inch Hg
  • Measurement : Differential, Vaccum
  • Min/Max/Hold: N/A
  • Pressure and Leak Test Option: Yes

Your Price: $181.65

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1222-M1000-W/M 1222-M1000-W/M

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Dwyer 1222-M1000-W/M - Flex-Tube U-Tube Manometer, Range 500-0-500 mm w.c.
  • Type (Manometer): U-Tube
  • Max Pressure: 500 MM of H2O (9730732.15 IN of H2OWhat's This?)
  • Type of Input: N/A
  • Engineering Units (HVAC): inch H2O
  • Measurement : Differential
  • Min/Max/Hold: N/A

Your Price: $118.55

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422-10 422-10

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Dwyer 422-10 - 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: $1,804.40

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

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Dwyer 475-00-FM-AV - Air Velocity Kit with Digital Manometer and 6" SS Pitot Tube
  • 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: $582.40

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475-2-FM 475-2-FM

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Dwyer 475-2-FM - Handheld Digital Manometer, 0-40.00" w.c. (9.96 kPa), max. pressure 10 psig.
  • Type (Manometer): Digital
  • Max Pressure: 40 IN of H2O
  • Type of Input: N/A
  • Engineering Units (HVAC): inch H2O, kPa, psi
  • Measurement : Differential
  • Min/Max/Hold: N/A

Your Price: $234.00

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475-3-FM 475-3-FM

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Dwyer 475-3-FM - Digital Manometer, Handheld, Intrinsically Safe, 0-200.0" w.c. (49.82 kPa), max. pressure 30 psig.
  • Type (Manometer): Digital
  • Max Pressure: 200 IN of H2O
  • Type of Input: N/A
  • Engineering Units (HVAC): inch H2O, kPa, psi
  • Measurement : Differential
  • Min/Max/Hold: N/A

Your Price: $234.00

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477AV-7 477AV-7

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Dwyer 477AV-7 - Handheld Digital Manometer, 0-100.00 psi, air velocity/flow modes.
  • Type (Manometer): Digital
  • Max Pressure: N/A
  • Type of Input: N/A
  • Engineering Units (HVAC): hPa, inch Hg, kPa, mbar, mmHg, psi
  • Min/Max/Hold: Yes
  • Pressure and Leak Test Option: N/A

Your Price: $232.95

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490A-4 490A-4

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Dwyer 490A-4 - Wet/Wet Handheld Digital Manometer, 0 to 100 psi (0 to 689.5 kPa)
  • Type (Manometer): Digital
  • Max Pressure: 100 psi (2767.99 IN of H2OWhat's This?)
  • Type of Input: N/A
  • Engineering Units (HVAC): bar, inch Hg, kPa, mbar, mmHg, psi
  • Measurement : Differential
  • Min/Max/Hold: N/A

Your Price: $1,004.65

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LPTK-02 LPTK-02

(1 Review)

Dwyer LPTK-02 - Low Pressure Gas Test Kit, 0-32" w.c., 0-18.5 oz/in2
  • Product Weight: 1.75 LBS
  • HTS/Schedule B Number: 9026.20.8000
  • ECCN Number: EAR99
  • Country of Origin: China

Your Price: $51.60

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475-1-FM 475-1-FM

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Dwyer 475-1-FM - Intrinsically Safe Handheld Digital Manometer, 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, kPa, psi
  • Measurement : Differential
  • Min/Max/Hold: N/A

Your Price: $325.50

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Dwyer 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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