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Fluke 971 Temperature Humidity Meter

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Temperature and humidity are two important factors in maintaining optimal comfort levels and good indoor air quality. Quickly and conveniently take accurate humidity and temperature readings with the Fluke 971.The Fluke 971 is invaluable for facility maintenance and utility technicians, HVAC-service contractors, and specialists who assess indoor air quality (IAQ). Lightweight and easy to hold, the Fluke 971 is the perfect tool for monitoring problem areas. With a rugged holster and protected sensor, the Fluke 971 is built to perform and made to last.

·         Backlit dual display of humidity and temperature

·         Measures dew point and wet bulb temperatures

·         99 record storage capacity

·         Ergonomic design with belt clip and protective holster

·         Quick-response capacitance sensor

·         Compact and lightweight (188 g/6.6 oz)

·         Temperature range from -20 °C to 60 °C (-4°F to 140 °F)

·         Relative humidity from 5 % to 95 %

·         Min/Max/Avg Data hold

·         Low battery indicator




 -20°C to 60°C (-4°F to 140°F)

Temperature accuracy

 0°C to 45°C (±0.5°C)

 -20°C to 0°C & 45°C to 60°C (±1.0°C)

 32°F to 113°F (±1.0°F)

 -4°F to 32°F & 113°F to 140°F (±2.0°F)


 0.1°C / 0.1°F

Temperature Update Rate

 500 ms

Temperature Sensor Type


Relative Humidity Range

 5% to 95% RH

Relative Humidity Accuracy

 10% to 90%RH @ 23 °C (73.4°F) (±2.5%RH)

 (<10%, > 90%RH @23°C (73.4°F) (±5.0%RH)

Humidity Sensor

 Electronic capacitance polymer film sensor.

Data storage capacity

 99 points

Response Time (Humidity)

 For 90% of total range - 60 sec. with 1m/s air movement



Environmental Specifications

Operating Temperature

 Temperature: -20°C to 60°C

 Humidity: 0°C to 55°C

Storage Temperature


 -20°C to 60°C at < 80% R.H. (with battery removed)



Mechanical & General Specifications


 190 g (6.7 oz)


 194mm x 60mm x 34mm

Battery type

 4 AAA alkaline batteries

Battery Life


 200 Hours

Cases and Holsters


C1600 Gear Box for Meter and Accessories


C23 Soft Carrying Case


C550 Tool Bag




LVD1 Volt Light





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