TSI Alnor EBT731 Capture Hood

Minimum Purchase:
1 unit
  • Alnor EBT731 Capture Hood
  • TSI Alnor EBT731 Capture Hood
  • MODEL EBT730 Micromanometer display (comes with EBT731)
  • Using the TSI ALNOR EBT730 Micromanometer stand-alone
MSRP: $3,710.00
Price: $3,339.00
— You save $371.00



Replaces the TSI 8375, TSI 8371 and the Alnor EBT721

Offering durable, trouble-free operation, this lightweight, ergonomically designed capture hood kit saves time and money by combining multiple measurement tools into one package.

The EBT731 Balometer® Capture Hood helps you create healthy and energy efficient environments while meeting local codes, guidelines and regulations for ventilation systems.

Features and Benefits:

  • Ergonomic design and ultra light weight for easy one person operation
  • Automatically senses and displays supply or return (exhaust) flows, saving time on the job
  • Back pressure compensation ensures accurate readings
  • Multiple hood sizes available for easy, cost effective use across multiple jobs
  • Detachable digital manometer for use in other applications with optional Pitot, airflow,temperature, velocity matrix, or relative humidity probes.

Detachable Micromanometer Features and Benefits:

  • Accurately measures pressure, velocity and flow to help you meet industry standards
  • Auto-zeroing pressure sensor reduces user-steps and saves time
  • Automatic density correction increases reading accuracy
  • Intuitive menu structure allows for ease of use and setup
  • Large graphic display with backlight offers easy-to-use interface
  • Displays up to five measurements simultaneously
  • On-screen messages and instructions
  • Programmed for multiple languages
  • Integrated Log-Tchebycheff duct traverse application simplifies calculations
  • Bluetooth communications for transferring data or remote polling
  • Compatible with AiRNAB digital documentation system
  • Includes downloading software with USB cable
  • Accommodates optional pitot, air flow (straight pitot), temperature/relative humidity, velocity matrix, or thermoanemometer probes for use in multiple applications


A multipurpose electronic air balancing instrument for reading rapidly and efficiently taking direct air volume flow measurements at diffusers, and grilles. It is ideally suited for commissioning agents, facilities managers, health and safety specialists, test engineers, and test and balance professionals.

This ultra light weight, ergonomically designed kit saves time and money while helping to create a healthy and energy efficient environment. Applications include thermal comfort studies, HVAC testing, adjusting and balancing, as well as air volume measurements.

Approved by the California Energy Commission (CEC) for use in as an Airflow Measurement Device for HVAC Forced Air Systems per the 2016 Building Energy Efficiency Standards (Title 24, Part6) Section 100.0(h) and Reference Residential Appendices Section RA3.3. Click Here for details.


Range 25 to 2,500 CFM (42 to 4250 m3/h) capture hood
Accuracy 3% of reading +/- 7 CFM
(+/-12 m3/h) at flows >50 CFM (>85 m3/h)
Units CFM, m3/h, m3/min, l/s
Resolution 1 CFM (1 m3/h)
Velocity (most of these below are options)
Range (Pitot Probes) 25 to 15,500 ft/min (0.125 to 78 m/s)
Range (Airflow Probe) 25 to 5,000 ft/min (0.125 to 25 m/s)
Velocity Matrix 25 to 2,500 ft/min (0.125 to 12.5 m/s)
Accuracy +/-3% of reading +/-7 ft/min (+/-0.04 m/s) at
velocities >50 ft/min (>0.25 m/s)
Units ft/min, m/s
Resolution 1 ft/min (0.01 m/s)
Differential Pressure +/-15 in. H2O (+/-3735 Pa ); 150 in. H2O
(37.5 kPa) maximum safe operating pressure
Absolute Pressure 15 to 40 in. Hg (356 to 1016 mm Hg)
Accuracy +/- 2% of reading +/-0.0001 in. H2O (+/-0.025 Pa )
static and differential; +/-2% of reading absolute
Units in. H2O, in. Hg, Pa, hPa, kPa, mm Hg, cm Hg,
mm H2O, cm H2O
Resolution 0.00001 in. H2O (0.001 Pa) static and
differential; 0.01 in. Hg (1 mm Hg) absolute
Range 5 to 95% RH temperature/RH probe
Accuracy +/-3% RH
Resolution 0.1% RH
Sensor in Base 40 to 140F (4.4 to 60C)
Temperature/RH Probe 14 to 140F (-10 to 60C)
Accuracy +/-0.5 F (+/-0.3C)
Units F, C
Resolution 0.1F (0.1C)
Instrument Temperature

40 to 140F (4.4 to 60C)
Storage -4 to 160F (-20 to 71C)

min, max, average and sum
Data Storage

26,500 samples, time and date stamped


  • 2 ft. x 2 ft. (610 mm x 610 mm) air capture hood/frame/base
  • Manometer with carrying case
  • (4) AA size rechargeable NiMH batteries
  • Multi-country AC adapter
  • 18 in. (46 cm) Pitot probe
  • (2) Static Pressure probes
  • 16 ft. (4.8 m) Neoprene tubing
  • Wheeled luggage-style carrying case
  • NIST traceable calibration certification
  • Downloading software
  • USB interface cable
  • Manual



Software / App

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