Fluke 971 Data Sheet

Fluke 971

Temperature Humidity Meter

Technical Data

Quickly take accurate humid­ity and temperature readings
in the air. Temperature and
humidity are two important
factors in maintaining optimal
comfort levels and good indoor
air quality. The Fluke 971 is
invaluable for facility mainte-

The Fluke 971 has:

• Backlit dual display of humidity and temperature

• 99 record storage capacity

• Ergonomic design with belt clip and protective holster

• Quick-response capacitance sensor with protective cover

General Features

• Compact and lightweight (190 g/6.7 oz)

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

• Measures dew point and wet bulb

• Relative humidity from 5 % to 95 %

• Min/Max/Avg data hold

• Low battery indicator

nance and utility technicians,
HVAC-service contractors, and
specialists who assess indoor
air quality (IAQ). Lightweight,
rugged, and easy to hold, the
Fluke 971 is the perfect tool for
monitoring problem areas.

Specifications

Temperature range -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 and 45 °C to 60 °C ± 1.0 °C
32 °F to 113 °F ± 1.0 °F

-4 °F to 32 °F and 113 °F to 140 °F ± 2.0 °F
Resolution 0.1 °C / 0.1 °F
Temperature update rate 500 ms
Temperature sensor type NTC
Relative humidity range 5 % to 95 % R.H.
Relative humidity accuracy
10 % to 90 % R.H. @ 23 °C (73.4 °F) ± 2.5 % R.H.
<10 %, > 90 % R.H. @ 23 °C (73.4 °F) ± 5.0 % R.H.
Resolution 0.1 % R.H.
Response time (humidity) For 90 % of total range - 60 sec. with

1 m/s air movement
Humidity sensor Electronic capacitance polymer film sensor
Data storage 99 points

Specifications cont.

Operating temperature
Temperature -20 °C to 60 °C (-4 °F to 140 °F)
Humidity 0 °C to 55 °C (32 °F to 131 °F)
Storage temperature -20 °C to 60 °C (-4 °F to 140 °F) at < 80 % R.H. (with battery removed)
Weight 190 g (6.7 oz)
Dimensions (HxWxD) 194 mm x 60 mm x 34 mm (7.6 in x 2.4 in x 1.3 in)
Battery type 4 AAA alkaline batteries
Battery life 200 Hours
Safety approval Electromagnetic compatibility: Complies with EN 61326-1
Warranty 12 months

* Humidity sensor hysteresis (excursion of 10 % to 90 % to 10 % R.H.): ± 1 % R.H. with 1 m/s air movement
* Temperature coefficient: 0.1 times the applicable accuracy specification per °C from 0 °C to 18 °C and 28 °C to 50 °C (32 °F to 64 °F and
83 °F to 122 °F)

Other IAQ Tools from Fluke

Fluke 983 Particle Counter

• Simultaneous display of six size
channels on a bright, backlit LCD

• 5000 sample record capacity

• Logged samples include date, time,

particle counts, sample volume,
temperature and relative humidity

• Rechargeable NiMH battery providing
up to 8 hours continuous operation

• Selectable sample time, count data,
programmable delay

CO-220 Carbon Monoxide Meter

• Standalone CO meter that does not require a
digital multimeter

• Large backlit LCD displays CO levels
from 0 to 999 ppm.

• Beeper triggers with increasing
frequency as CO levels rise.

• MAX hold function stores and displays
the maximum CO level.

• Automatic sensor zeroing and self-test
upon startup.

• Built-in relative humidity and temperature
sensors

CO-205 Aspirator Kit

The CO-205 flue gas
sampling accessory
kit contains all the
components neces­sary to provide a
clean sample for the
Fluke family of gas
measuring devices. The CO-205 accessory kit
includes:

• Stainless steel sampling tube

• Industrial-grade hand operated aspirator to

draw flue sample

• Easily replaceable particulate filter

• Specially designed nose cap for connection to

the Fluke CO-220.

Ordering Information

Fluke-971 Temperature Humidity Meter
Fluke-983 Particle Counter
Fluke-CO-205 Aspirator Kit
Fluke-CO-220 Carbon Monoxide Meter

2 Fluke Corporation Fluke 971 Temperature Humidity Meter

Fluke. Keeping your world
up and running.

Fluke Corporation
PO Box 9090, Everett, WA 98206 U.S.A.

Fluke Europe B.V.
PO Box 1186, 5602 BD
Eindhoven, The Netherlands

For more information call:
In the U.S.A. [phone] or
Fax [phone]
In Europe/M-East/Africa [phone] or
Fax [phone]
In Canada (800)-36-FLUKE or
Fax [phone]
From other countries [phone] or
Fax [phone]
Web access: http://www.fluke.com

©2005-2011 Fluke Corporation.
Specifications subject to change without notice.
Printed in U.S.A. 10/2011 2457037D D-EN-N

Modification of this document is not permitted
without written permission from Fluke Corporation.

®