Extech Instruments HD350, 407910, HD700 Catalog Page

Differential Pressure ManometersPitot Tube Anemometer and Pressure Manometers

N Indicates products that are available with optional calibration traceable to NIST. See page 160 for a complete listing.

HD350 Pitot Tube Anemometer + Differential Manometer

Pitot Tube measures Air Velocity/Airflow in difficult-to-reach or tight
locations where a vane anemometer won’t fit

• 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

Includes pitot tube with two

33.5” (85cm) connection hoses

• 3 year warranty

• Complete with Windows
pitot tube with two 33.5" (85cm) connection hoses, 100V-240V
universal AC Adaptor with multiple plugs, and hard carrying case

SPECIFICATIONS RANGE MAX RESOLUTION BASIC ACCURACY

Pressure

psi 0.7252psi 0.0001psi ±0.3%FS
mbar 50.00mbar 0.01mbar ±0.3%FS

O 20.07inH2O 0.01inH2O ±0.3%FS

inH

2

mmH2O 509.8mmH2O 0.01mmH2O ±0.3%FS

Pa 5000Pa 1Pa ±0.3%FS
Linearity/Hysteresis ±0.29FS
Maximum Pressure 10psi

Air Velocity/Flow

ft/min 200 to 15733 1 ±1% FS
m/s 1 to 80.00 0.01 ±1% FS
km/h 3.5 to 288.0 0.1 ±1% FS
MPH 2.25 to 178.66 0.01 ±1% FS
knots 2.0 to 154.6 0.1 ±1% FS

CFM/CMM 0 to 99,999 0.001 ±1% FS
Temperature 32.0 to 122.0°F (0 to 50°C) 0.1° ±3°F/1.5°C
Dimensions/Weight Meter: 8.2 x 2.9 x 1.9" (210 x 75 x 50mm) / 12oz (340g);

®

compatible software with cable, 9V battery,

Pitot Tube: 15.4 x 7.7” (390 x 195mm); Diameter 0.32" (8mm) / 7.2oz (204g)

HD700 Series Differential Pressure Manometers

Low Range/High Resolution Gauge or Differential Pressure

• Three models to choose from: Model HD700 (±2psi range),
Model HD750 (±5psi range), and Model HD755 (±0.5psi range)

• 11 selectable units of measure

• MAX/MIN recording and Relative time stamp

• Data Hold and Auto power off

• Zero function for offset correction or measurement

• Large LCD display with backlighting

• USB port includes PC software

• 3 year warranty

• Complete with 9V battery, Windows
240V Universal AC adaptor, connection hose, built-in stand, and hard carrying case

HD755 - (0.5psi)

HD750 - (5psi)

HD700 - (2psi)

SPECIFICATIONS HD700 HD750 HD755

psi 2psi (0.001psi) 5psi (0.001psi) 0.5psi (0.001psi)
inH2O 55.40inH2O (0.01inH2O) 138.3inH2O (0.1inH2O) 13.85inH2O (0.01inH2O)
mbar 137.8mbar (0.1mbar) 344.7mbar (0.1mbar) 34.47mbar (0.01mbar)
kPa 13.78kPa (0.01kPa) 34.47kPa (0.01kPa) 3.447kPa (0.001kPa)
inHg 4.072inHg (0.001inHg) 10.18inHg (0.01inHg) 1.018inHg (0.001inHg)

mmHg 103.4mmHg (0.1mmHg) 258.5mmHg (0.1mmHg) 25.85mmHg (0.01mmHg)

2

ozin
ftH2O 4.616ftH2O (0.001ftH2O) 11.53ftH2O (0.01ftH2O) 1.154ftH2O (0.001ftH2O)
cmH2O 140cmH2O (0.1cmH2O) 350.1cmH2O (0.1cmH2O) 2.59cmH2O (0.01cmH2O)

2

kgcm
bar 0.137bar (0.001bar) 0.344bar (0.001bar) 0.034bar (0.001bar)
Basic Accuracy ±0.3%FS ±0.3%FS ±0.3%FS
Dimensions/Weight Meter: 8.2x2.9x1.9" (210x75x50mm)/ 9.8oz (280g)

32ozin2 (0.01ozin2) 80ozin2 (0.01ozin2) 8.00ozin2 (0.01ozin2)

0.140kgcm2 (0.001kgcm2) 0.351kgcm2 (0.001kgcm2) 0.035kgcm2 (0.001kgcm2)

ORDERING

HD700 N

HD750

N

HD755

N

Differential Pressure Manometer (2psi) $199.99

Differential Pressure Manometer (5psi) $219.99

Differential Pressure Manometer (0.5psi) $199.99

407910 Heavy Duty Differential Pressure Manometer

®

compatible software with USB cable, 100-

ORDERING

HD350 Pitot Tube Anemometer + Differential Manometer $409.99

110

Wide range dual input with multiple units and RS-232 interface

• Dual differential inputs with internal sensors

• Wide (±802 inches of water) measurement range with high resolution to 0.5 inch

• Displays 8 types of pressure units

• Zero function for offset measurements

• Data Hold, Auto power off, and MAX/MIN

• Built-in RS-232 PC interface — optional 407001 Data
Acquisition software (see p. 114 for details)

• 3 year warranty

• Complete with 2 quick-disconnect fittings, 9V battery,
protective holster with stand, and case

SPECIFICATIONS RANGE RESOLUTION BASIC ACCURACY

psi ±29psi 0.02psi ±1% FS
mbar ±2000mbar 1mbar ±2% FS

2

kg/cm
mmHg ±1500mmHg 1mmHg ±1% FS
inHg ±59.05inHg 0.05inHg ±1% FS

O ±20.40mH2O 0.01mH2O ±1% FS

mH

2

inH2O ±802.0inH2O 0.5inH2O ±1% FS
Atmosphere ±1.974atm 0.001atm ±1% FS
Dimensions/Weight Meter: 7x2.9x1.3" (178x74x33mm)/12oz (350g)

±2.040kg/cm2 0.001kg/cm

2

±1% FS

ORDERING

407910 N
156119 117VAC Adaptor $26.99
409997 Soft Vinyl Carrying Case $20.99

Heavy Duty Differential Pressure Manometer $269.99

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