Air Velocity Meter Rentals

Instruments in this category measure air velocity or volume for use in testing and balancing indoor air ventilation systems. Many of these models are also capable of measuring addtional ventilation or indoor air quality parameters including temperature or pressure.

Dwyer 471

Air Velocity Meter

Dwyer 471

Perfect for quick air velocity measurements, the Dwyer 471 anemometer is easily operated with almost no learning curve. Featuring a telescoping probe, simultaneous temperature measurements, and user selectable ranges, this is the anemometer rental instrument of choice for simple direct air velocity measurements.

Air Velocity Range 1
0 to 500 FPM
0 to 3 MPS
Resolution 1 FPM or 0.1 MPS
Accuracy ±3% FS @ 59 to 86°F
Air Velocity Range 2
0 to 1500 FPM
0 to 7 MPS
Resolution 1 FPM or 0.1 MPS
Accuracy ±3% FS @ 59 to 86°F
Air Velocity Range 3
0 to 5000 FPM
0 to 30 MPS
Resolution 1 FPM or 0.1 MPS
Accuracy ±4% FS @ 59 to 86°F
Air Velocity Range 4
0 to 15000 FPM
0 to 75 MPS
Resolution 1 FPM or 0.1 MPS
Accuracy ±5% FS @ 59 to 86°F
0 to 200°F
Resolution 0.1°
Accuracy ±2°F
  • 33″ telescoping 5/6″ diameter probe
  • Includes step drill
  • 4 user selectable ranges
  • 15 second response time
  • Backlit LCD display
  • Standard or metric units
  • Lightweight
  • Input power 9V alkaline battery
  • Operating temperature 32 to 104°F
  • Storage temperature -40 to 176°
  • Dimensions 6.5″ x 3″ x 1″
  • Weight 12 oz
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Sper Scientific 850070

Indoor Environmental Quality Meter

Sper Scientific 850070

Much more then just an air velocity meter, this instrument is capable of measuring 3 other parameters all in the palm of your hand. For projects requiring basic measurements of light, humidity, or temperature in addition to air velocity the 850070 mini environmental quality meter handles it all with one very economical and easy to use rental instrument.

Air Velocity FPM
80 to 4,930 FPM
Resolution 1 FPM
Accuracy ±(3% + 20 FPM)
Air Velocity MPS
0.4 to 25 MPS
Resolution 0.1 MPS
Accuracy ±(3% + 2d)
Air Velocity km/h
1.4 to 90 km/h
Resolution 0.1 km/h
Accuracy ±(3% + 2d)
Air Velocity mph
0.9 to 55.9 mph
Resolution 0.1 mph
Accuracy ±(3% + 2d)
Air Velocity knots
0.8 to 48.6 knots
Resolution 0.1 knots
Accuracy ±(3% + 2d)
10 to 95% RH
Resolution 0.1%
Accuracy ±6% @ 30 to 60% RH
0 to 20,000 lux
Resolution 1 lux
Accuracy ±(5% + 4d)
Foot Candle
0 to 2,000 lm/ft²
Resolution 0.1 lm/ft²
Accuracy ±(5% + 4d)
Temperature, Ambient
32 to 122°F
0 to 50°C
Resolution 0.1°
Accuracy ± 2.5°F or 1.2°C
Temperature, Thermocouple
-148 to 2372°F
-100 to 1300°C
Resolution 0.1°
Accuracy ± (1% + 2°F) or (1% + 1°C)
  • Measures 4 parameters
  • Airspeed in 5 different units
  • light levels in 2 different units
  • Relative humidity
  • Ambient temperature and type K thermoprobe port
  • Max/min and hold functions
  • Lightweight and compact
  • Input power 9V alkaline battery
  • Thermoprobe port type K
  • Operating temperature 32 to 122°F
  • Dimensions 6″ x 2.5″ x 1″
  • Weight 5.5 oz
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TSI AccuBalance 8375

Air Capture Hood with Manometer

TSI AccuBalance 8375

Standard equipment for testing ventilation systems, the AccuBalance combines a capture hood with an advanced detachable manometer. Accurate volume measurements can be taken quickly with very little setup time, making this the ideal capture hood rental instrument for testing new ventilation installations or balancing existing ones. For more complex projects the AccuBalance features built in datalogging and a PC interface. The manometer itself can also be removed from the hood for use in other applications.

Air Volume ft³/min
25 to 2,500 ft³/min
Resolution 1 ft³/min
Accuracy ±3% or ±7 ft³/min @ > 50 ft³/min
Air Volume m³/h
42 to 4,250 m³/h
Resolution 1 m³/h
Accuracy ±3% or ±12 m³/h @ > 85 m³/h
Differential Pressure
±15 in. H2O
Resolution 0.00001 in. H2O
Accuracy ±2% or ±0.001 in. H2O
Absolute Pressure
15 to 40 in. Hg
Resolution 0.01 in. Hg
Accuracy ±2%
Air Velocity ft/min
25 to 8,000
Resolution 1 ft/min
Accuracy ±3% or ±7 ft/min @ > 50 ft/min
Air Velocity m/s
0.125 to 40 m/s
Resolution 0.01 m/s
Accuracy ±3% or ±0.04 m/s @ > 0.25 m/s
  • 2′ x 2′ hood with support frame
  • Specifically designed for measuring at grills and diffusers
  • Measures volume and pressure
  • Back pressure compensated
  • Datalogging
  • Lightweight and ergonomic
  • Rechargeable batteries
  • Detachable manometer measures air flow
  • Datalogging points 1000
  • Input power 110 VAC, 12 hour runtime on internal battery
  • PC interface RS232
  • Digital output RS232
  • Operating temperature 40 to 140°F
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Search Terms

  • Air Monitoring
  • Air Velocity Meters
  • TSI VelociCalc
  • VelociCalc 8360
  • VelociCalc 8388
  • Veloci Calc
  • Dwyer 471
  • 4712
  • 471 2
  • Sper Scientific 850070
  • TSI AccuBalance 8375
  • Accu-Balance 8375

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