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White Fluke 971 handheld meter with 4-line LCD display

Fluke

Fluke 971 Temperature Humidity Meter 5 to 95% RH

SKU CH-CFG9-XBWHV

Measures temperature from -4 to 140 °F and humidity from 5 to 95 % RH with ±2.5 % accuracy on a four-line LCD

  • TypeEnvironmental & Mechanical
  • Measures 5 to 95 % relative humidity with ±2.5 % accuracy
  • Temperature range from -4 °F to 140 °F with ±2 °F precision
  • Calculates dew point from -58 °F to 140 °F for moisture analysis
  • Wet-bulb readings from -4 °F to 140 °F support HVAC diagnostics
  • Four-line LCD shows min, max and average values at a glance

Fluke 971 Temperature Humidity Meter

The Fluke 971 measures relative humidity from 5 to 95 percent and temperature from -4 to 140 degrees Fahrenheit. It is designed for technicians and facility managers who need portable environmental readings in HVAC, indoor air quality or industrial maintenance tasks.

Humidity accuracy limits at temperature extremes

The meter specifies a humidity accuracy of ±2.5 percent and ±5.0 percent across the range. Temperature accuracy is ±2 degrees Fahrenheit below 32 degrees Fahrenheit and above 113 degrees Fahrenheit. Wet bulb readings cover -4 to 140 degrees Fahrenheit while dew point spans -58 to 140 degrees Fahrenheit with 0.1 percent humidity resolution.

Verify display and logging needs before ordering

The unit uses a 4-line LCD to show current, minimum, maximum and average values. Confirm that on-screen readouts meet your documentation requirements because no computer interface or data export capability is listed. Ensure the operating temperature envelope matches the environments where the meter will be deployed.

Highlights

  • Measures 5 to 95 % relative humidity with ±2.5 % accuracy
  • Temperature range from -4 °F to 140 °F with ±2 °F precision
  • Calculates dew point from -58 °F to 140 °F for moisture analysis
  • Wet-bulb readings from -4 °F to 140 °F support HVAC diagnostics
  • Four-line LCD shows min, max and average values at a glance

Specifications

BrandFLUKE
TypeEnvironmental & Mechanical

Questions about this item

What humidity range and accuracy does the Fluke 971 cover for HVAC checks?

It measures 5 to 95% RH with ±2.5% accuracy in the mid-range and ±5.0% at the extremes, giving reliable readings for ductwork and room comfort verification.

How do the stated temperature accuracies apply across the -4 to 140°F operating span?

Accuracy is ±2°F from 32 to 113°F; outside that band — below 32°F or above 113°F — the tolerance widens, so critical readings near freezing or high heat should be cross-checked.

What does the 0.1% humidity resolution mean when logging min, max and average values?

The display shows changes as small as 0.1% RH, so the stored min, max and average records reflect fine shifts in moisture levels during a test session.

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