The Fluke 975 AirMeter test tool raises indoor air monitoring to the next level by combining five powerful tools in one, rugged and easy-to-use handheld device. Use the Fluke 975 to optimize HVAC ventilation settings for ASHRAE 62 recommendations, actively monitor conditions that promote a productive environment, and quickly and accurately address occupant comfort complaints the first time.

The Fluke 975 measures:

• Temperature
• Velocity
• Humidity
• CO2
• CO

Use the Fluke 975 AirMeter test tool to:

• Respond to comfort-related calls from occupants.
• Verify the operation of building HVAC control systems.
• Determine whether adequate ventilation exists.
• Monitor air flow and velocity.
• Test for dangerous carbon monoxide leaks.
• Perform duct traversals.
• Optimize HVAC systems to manage energy costs

Measured Specifications

Temperature
• Range: -20 °C to 50 °C (-5 °F to 122 °F)
• Display resolution: 0.1 °C (0.1 °F)
• Accuracy:
  • ± 0.9 °C/± 1.62°F from 40 °C to 60 °C
  • ± 0.5 °C/± 1.00°F from 5 °C to 40 °C
  • ± 1.1 °C/± 1.98 °F from -20 °C to 5 °C
Relative humidity
• Range: 10 % to 90 % RH, non-condensing
• Display Resolution: 1%
• Accuracy: ± 2 % RH (10 % RH to 90 % RH)
Air velocity
• Range:
  • 50.0 fpm to 3000 fpm
  • 0.25 m/sec to 15 m/sec
• Display Resolution: 1 fpm (0.005m/sec)
• Accuracy:
  • ±4 % or 4 fpm*
  • ±4 % or 0.02 m/sec*whichever is greater *Accuracy specification only valid for velocity readings above 50 fpm.
CO2
• Range: 0 to 500 ppm
• Display Resolution: 1 ppm
• Accuracy: ± 5 % or ± 3 ppm, whichever is greater, @ 20 °C and 50 % RH

Calculated specifications

Dew point temperature
• Range: -44 °C to 50 °C, (-47 °F to 122 °F)
• Display Resolution: 0.1 °C (0.1 °F)
• Accuracy:
  • ± 1 °C when temp: -20 °C to 50 °C RH: 40 % to 90 %
  • ± 2 °C when temp: -20 °C to 50 °C RH: 20 % to 40 %
  • ± 4 °C when RH: 10 % to 20 %
Wet bulb temperature
• Range: -16 °C to 50 °C, (3 °F to 122 °F)
• Display Resolution: 0.1 °C, (0.1 °F)
• Accuracy:
  • ± 1.2 °C when RH: 20 % to 90 % temp: -20 °C to 60 °C
  • ± 2.1 °C when RH: 10 % to 20 %
Volume flow rate (in a duct)
• Range: 0 to 3,965 M3/m, (0 to 140,000 cfm)
• Display Resolution: 0.001 M3/min, (1 cfm)
• Accuracy: N/A: The volume flow calculation will be a simple average of the data points times the duct area
Percentage of outside air (based on temperature)
• Range: 0 to 100%
• Display Resolution: 0.1
Percentage of outside air (based on CO2)
• Range: 0 to 100 %
• Display Resolution: 0.1 % N/A

General specifications

• Operating and storage temperature: -20 °C to 50 °C (-4 °F to 122 °F)
• Humidity: 10 % to 90 % (non-condensing)
• Altitude: Up to 2000 m (6562 ft)
• Shock and vibration: MIL-PRF-28800F: Class 2
• Multi-language interface: English, French, Spanish, Portuguese and German
• Battery: Rechargeable Li-Ion (primary), three-AA (backup)
• Data logging: 25,000 records (continuous), 99 records (discrete)
• Warranty: Two-years