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Features

  • Part number EBT721
  • Manufactured by TSI Alnor
  • Velocity
    • Pitot Probe & Air Flow Probe: 25 to 15,500 ft/min
    • Velocity Matrix: 25 to 5,000 ft/min
    • Accuracy: up to ±3% of reading ±7 ft/min
  • Pressure
    • Differential Pressure: ±15 in. H2O
    • Absolute Pressure: 15 to 40 in. Hg
    • Accuracy: up to ±2% of reading
  • Volume
    • Range: 25 to 2,500 ft3/min capture hood
    • Accuracy: up to ±3% of reading ±7 ft3/min
  • Relative Humidity
    • Range: 0 to 95% RH
    • Accuracy: ±3% RH
  • Temperature
    • Sensor in Base: 40 to 140°F
    • Temperature Probe: -40 to 250°F
    • Temperature/RH Probe: 14 to 140°F
    • Accuracy: up to ±0.5°F (±0.3°C)

The TSI Alnor EBT721 balometer is a multi-purpose electronic air balancing instrument for reading air volume flow at diffusers and grilles. It is ideally suited for commissioning agents, test and balance contractors, facilities managers, health and safety specialists and ventilation installers. The TSI Alnor EBT721 is a lightweight, ergonomically designed kit that saves time and money, while helping to create a healthy and energy efficient environment.

Designed for use with pitot, air flow, temperature, velocity matrix or relative humidity probes, the TSI Alnor EBT721 balometer also features a detachable digital manometer that can be used for other applications. Other features of the TSI Alnor EBT721 balometer include min, max and average for up to 1,000 readings, time and date stamped data storage (1,000 readings), a user-selectable logging interval and a response time of 2 to 8 seconds.

The 6-digit, multi-line display of the TSI Alnor EBT721 balometer also features large characters (19 mm) and symbolic icons which are displayed on a high-contrast backlit LCD. A ¼ inch (6.35 mm) straight port pressure connection is also included with the EBT721 and is designed for use with 3/16 inch (4.76 mm) ID flexible tubing.

The TSI Alnor EBT721 balometer ships complete with:

  • 2' x 2' air capture hood, frame and base
  • Manometer
  • Wheeled luggage-style carrying case
  • 18" pitot probe
  • 2 static pressure probes
  • Two 8' Norprene tubing
  • LogDat1 downloading software
  • Serial interface cable
  • Neck strap
  • Four AA rechargeable NiMH batteries
  • Internal charger
  • NIST calibration
  • Manual

Specifications

Temperature RangeSensor in Base (40 to 140°F (4.4 to 60°C))
Temperature probe (-40 to 250°F (-40 to 121°C))
Temperature/RH probe (14 to 140°F (-10 to 60°C))
Temperature Resolution0.1°F (0.1°C)
Velocity RangePitot probes 25 to 15,500 ft/min (0.125 to 78 m/s)
Air flow probe 25 to 15,500 ft/min (0.125 to 78 m/s)
Velocity matrix 25 to 5,000 ft/min (0.125 to 25 m/s)
Temperature Accuracy±0.5°F (±0.3°C) from 32 to 160°F (0 to 71°C)
Operating Temp40 to 140°F (4.4 to 60°C)
Power SupplyFour AA-size cells or AC adapter
Battery LifeN/A
Velocity Resolution1 ft/min (0.01 m/s)
Velocity Accuracy±3% of reading ±7 ft/min (±0.04 m/s) at
velocities >50 ft/min (>0.25 m/s)
Additional InformationStatistics (min, max, average up to 1000 readings)
Pressure RangeDifferential 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)
Pressure Accuracy±2% of reading ±0.001 in. H2O (±0.25 Pa)
static and differential; ±2% of reading absolute
OutputN/A
Time ConstantN/A
Relative Humidity Range0 to 95% RH temperature/RH probe
Relative Humidity Accuracy±3% RH
Relative Humidity Resolution0.1% RH
Volumetric Flow Range25 to 2,500 ft3/min (42 to 4250 m3/h) capture hood
Volumetric Flow Accuracy±3% of reading ±7 ft3/min (±12 m3/h) at
flows >50 ft3/min (>85 m3/h)
Volumetric Flow Resolution1 ft3/min (1 m3/h)
Power Supplies
TSI Alnor 801040 Power Cord
Power cord designed for use with the TSI Alnor EBT720, EBT721, 8710, 8375 and PH72 units
$95.00
$90.25
Probes
TSI Alnor 800187 Air Flow Probe
18" (46 cm) air flow probe designed for use with the TSI Alnor EBT721 balometer
$365.00
$346.75
TSI Alnor 800218 Temperature Probe
Telescopic temperature probe designed for use with the TSI Alnor EBT721 balometer
$280.00
$266.00
TSI Alnor 800219 Temperature & Humidity Probe
Telescopic temperature probe designed for use with the TSI Alnor EBT721 balometer
$375.00
$356.25
TSI Alnor 3002017 Static Pressure Probe
Static pressure probe designed for use with the TSI Alnor EBT721 and EBT731 balometers
$30.00
$28.50
TSI Alnor Pitot Probes
Various length Pitot probes designed for use with TSI Alnor instruments
Starting at
$150.00
$142.50
Accessories
Please consider these optional accessories.
TSI Alnor Norprene Tubing
8 feet (2.5 meters) of Norprene tubing designed for use with the TSI Alnor EBT721
$15.00
$14.25