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Volume Indicating Thermo-Anemometer Kit

LCD Display, Range 125 to 4900 FPM, RS232


Item# HHF91

Volume discounts available
Volume Discount Schedule
Quantity Price each
1-4 $289.53
5-9 $272.16
10-24 $266.37
25-49 $249.00
50-99 $246.10
100+ $237.41

In stock

Lead Time (If not in stock): 6 weeks
LCD Display, Range 125 to 4900 FPM, RS232 HHF91 HHF91
  • Very Economical
  • Displays CFM, Velocity, and Temperature
  • Averaging of Up to 8 Velocity Readings
  • Min/Max Display
  • Switchable Between FPM/mps and °C/°F

HHF91 Model Options

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Application Type
Velocity Range
Max Process Temperature
Probe Diameter
Supply Power
Output Signal

OMEGA’s HHF91 digital anemometer is a versatile instrument for measuring air velocity, calculated air volume flow, and air temperature. Special features include the ability to switch between FPM/°F and m/sec-°C and an AUTO-OFF function that engages after 20 minutes (the AUTO-OFF function can be bypassed for continuous operation). The HHF91 can indicate average, minimum and maximum readings, and includes a hold button to freeze the display. It can also be reprogrammed with the keypad to read in either FPM/mps and °C/°F.

The kit is supplied with one handheld readout with attached velocity probe (3 foot cable), one 9 V battery, and one carrying case.

Air Velocity Range: 125 to 4,900 fpm (0.7 to 25.00 mps)
Resolution: 1 fpm or 0.01 mps
Calculated Air Flow Volume: 0.0 to 9999 CFM or CMS
Display: 4 full digits, 32 x 41 mm (1¼ x 158')
RS232 Output: 2400 or 1200 baud
   Velocity: 2% of full scale from 200 to 4500 fpm
   Temperature: ±1°F or 0.6°C
Temperature Range: -10 to 50°C (14 to 122°F), 0.1°C or °F resolution
Power Supply: 9V battery, included (100 hour life, typical)
Battery Check: Automatic low battery display
Dimensions: 181 x 70 x 35 mm (718 x 2¾ x 138') (handheld); 73 mm (278') diameter fan
Weight: ¼ kg (3 lb)
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Does this come with a record of calibration?

Asked by: Louis
Thank you for your inquiry. If you want a calibration certificate with an HHF-91 you will have to an HHF91-CAL-3-FLOW instead of the HHF-91.
Answered by: AS Engineer
Date published: 2019-11-16
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Replacement probe for HHF91
0 In Stock
Software and cable for HHF91
2 In Stock
replacement 9 V battery
0 In Stock
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