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HVAC Manometers and Micromanometers

 
HD350 HD350

(3 Reviews)

Extech HD350 Pitot Tube Anemometer + Differential Manometer
  • Unique Features: Simultaneous display of Pressure, Air Velocity or Air Flow plus Temperature
    ±0.7252psi range
    5 selectable units of pressure measurement
    Max/Min/Avg recording and Relative time stamp
    Data Hold and Auto power off functions
    Large LCD display with backlighting
    Zero function for offset correction or measurement
    Store/Recall up to 99 readings in each mode
    USB port includes software
  • Warranty: 3 YEARS
  • Safety Approval: CE
  • Product Weight: 340 GRAMS (0.750 LBSWhat's This?)
  • Product Height: 2.9 IN
  • Product Length: 1.9 IN

List Price: $430.99

Your Price: $383.84

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407910 407910

0 reviews

Extech 407910 Heavy Duty Differential Pressure Manometer (29psi)
  • Type (Manometer): Digital
  • Max Pressure: 29 psi (802.72 IN of H2OWhat's This?)
  • Type of Input: Dual, Single
  • Engineering Units (HVAC): inch H2O, inch Hg, mmH2O, mmHg, psi
  • Measurement : Absolute, Differential
  • Min/Max/Hold: Yes

List Price: $297.99

Your Price: $265.39

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HD700 HD700

0 reviews

Extech HD700 Differential Pressure Manometer
  • Type (Manometer): Digital
  • Max Pressure: 2 psi (55.36 IN of H2OWhat's This?)
  • Type of Input: Dual, Single
  • Engineering Units (HVAC): inch H2O, inch Hg, kPa, mmH2O, mmHg, psi
  • Measurement : Absolute, Differential, Gauge
  • Min/Max/Hold: Yes

List Price: $246.39

Your Price: $219.43

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HD750 HD750

(2 Reviews)

Extech HD750 Differential Pressure Manometer
  • Type (Manometer): Digital
  • Max Pressure: 5 psi (138.40 IN of H2OWhat's This?)
  • Type of Input: Dual, Single
  • Engineering Units (HVAC): inch H2O, inch Hg, kPa, mmH2O, mmHg, psi
  • Measurement : Absolute, Differential, Gauge
  • Min/Max/Hold: Yes

List Price: $257.39

Your Price: $229.23

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HD755 HD755

0 reviews

Extech HD755 Pressure Manometer Differential 0.5psi
  • Type (Manometer): Digital
  • Max Pressure: 0.5 psi (13.84 IN of H2OWhat's This?)
  • Type of Input: Dual, Single
  • Engineering Units (HVAC): inch H2O, inch Hg, kPa, mmH2O, mmHg, psi
  • Measurement : Absolute, Differential, Gauge
  • Min/Max/Hold: Yes

List Price: $246.39

Your Price: $219.43

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407910-NIST 407910-NIST

0 reviews

Extech 407910-NIST Heavy Duty Differential Pressure Manometer (29psi) with NIST Certificate
  • Type (Manometer): Digital
  • Max Pressure: 29 psi (802.72 IN of H2OWhat's This?)
  • Type of Input: Dual, Single
  • Engineering Units (HVAC): inch H2O, inch Hg, mmH2O, mmHg, psi
  • Measurement : Absolute, Differential
  • Min/Max/Hold: Yes

List Price: $452.99

Your Price: $403.43

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HD700-NIST HD700-NIST

(1 Review)

Extech HD700-NIST Differential Pressure Manometer with NIST
  • Type (Manometer): Digital
  • Max Pressure: 2 psi (55.36 IN of H2OWhat's This?)
  • Type of Input: Dual, Single
  • Engineering Units (HVAC): inch H2O, inch Hg, kPa, mmH2O, mmHg, psi
  • Measurement : Absolute, Differential, Gauge
  • Min/Max/Hold: Yes

List Price: $421.29

Your Price: $375.20

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HD750-NIST HD750-NIST

0 reviews

Extech HD750-NIST Differential Pressure Manometer (5psi) with NIST
  • Type (Manometer): Digital
  • Max Pressure: 5 psi (138.40 IN of H2OWhat's This?)
  • Type of Input: Dual, Single
  • Engineering Units (HVAC): inch H2O, inch Hg, kPa, mmH2O, mmHg, psi
  • Measurement : Absolute, Differential, Gauge
  • Min/Max/Hold: Yes

List Price: $433.39

Your Price: $385.98

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HD755-NIST HD755-NIST

0 reviews

Extech HD755 Differential Pressure Manometer (0.5psi) with NIST
  • Type (Manometer): Digital
  • Max Pressure: 0.5 psi (13.84 IN of H2OWhat's This?)
  • Type of Input: Dual, Single
  • Engineering Units (HVAC): inch H2O, inch Hg, kPa, mmH2O, mmHg, psi
  • Measurement : Absolute, Differential, Gauge
  • Min/Max/Hold: Yes

List Price: $421.29

Your Price: $375.20

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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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