Fluke 972B Temperature & Humidity Meter with External Sensor

The Fluke 972B Temperature & Humidity Meter with External Sensor is designed for HVAC technicians, facility maintenance teams, refrigeration technicians and indoor air quality professionals who need accurate temperature and humidity measurements in one reliable handheld instrument. With internal and external sensor capability, the Fluke 972B is ideal for comfort testing, environmental monitoring, building diagnostics and hard-to-reach measurement points.

The 972B measures temperature, relative humidity, dew point and wet bulb temperature, helping users quickly assess indoor air conditions and environmental performance. The included Fluke 972ES external sensor extends the temperature measurement range and allows readings to be taken in restricted or difficult-access areas.

Built for practical field use, the Fluke 972B features a 2-line backlit LCD display, Max/Min/Avg measurement functions, 99 sets of stored data and automatic logging for up to 8 hours. Its ergonomic grip, reinforced sensor protective cover and long battery life make it a dependable tool for daily HVAC, facility and maintenance work.

Set Includes

• 1 x Fluke 972B Temperature Humidity Meter

• 1 x Fluke 972ES external temperature and humidity sensor

Key Features

• Professional temperature and humidity meter for HVAC, facility maintenance and IAQ checks

• Includes both internal and external sensor capability

• External sensor allows measurement in limited-space and hard-to-reach areas

• Measures temperature, relative humidity, dew point and wet bulb temperature

• Internal temperature measurement range from -30.0°C to 65.0°C

• External temperature measurement range from -40.0°C to 99.9°C

• Humidity measurement range from 0.0% RH to 99.9% RH

• Temperature accuracy up to ±0.5°C over the main measurement range

• Humidity accuracy up to ±3% RH over the main measurement range

• 99 sets of stored data for easy review

• Auto logging mode supports up to 8 hours of automatic temperature and humidity monitoring

• Max, Min and Avg functions support quick environmental comparison

• 2-line LCD display with backlight for easy viewing

• Comfortable ergonomic grip for practical field use

• Reinforced sensor protective cover for added durability

• Long battery life up to 1000 hours with backlight off

Specifications

• Brand: Fluke

• Product Number: FLU972B

• Model: Fluke 972B

• Product Name: Fluke 972B Temperature Humidity Meter with External Sensor

• Tool Type: Temperature & Humidity Meter / Indoor Air Quality Meter

• Sensor Type: Internal sensor plus external sensor

• Included External Sensor: Fluke 972ES external temperature and humidity sensor

• Internal Temperature Range: -30.0°C to 65.0°C

• External Temperature Range: -40.0°C to 99.9°C

• Temperature Accuracy: Internal sensor ±0.5°C from -30.0°C to 65.0°C

• External Sensor Temperature Accuracy: ±0.5°C from -30.0°C to 65.0°C, ±0.7°C outside this range

• Temperature Resolution: 0.1°C

• Humidity Range: 0.0% RH to 99.9% RH

• Humidity Accuracy: ±3% RH from 20.0% RH to 80.0% RH at 25°C

• Extended Humidity Accuracy: ±5% RH from 1% RH to below 20% RH, and above 80% RH to 95% RH at 25°C

• Humidity Resolution: 0.1% RH

• Dew Point Temperature Range: -40.0°C to 99.9°C

• Dew Point Resolution: 0.1°C

• Wet Bulb Temperature Range: -20.0°C to 60.0°C

• Wet Bulb Resolution: 0.1°C

• Data Storage: Up to 99 sets

• Auto Logging: Yes, up to 8 hours

• Measurement Functions: Max, Min and Avg

• Display: 2-line LCD display with backlight

• Auto-Off: Powers off after 20 minutes without operation

• Battery Type: 2 x AAA batteries

• Battery Life: Up to 1000 hours continuous operation with backlight off

• Operating Temperature: -30°C to 70°C

• Operating Humidity: 0% RH to 99% RH

• Operating Altitude: 2000m

• Storage Altitude: 12000m

• Safety Standard: IEC 61010-1, Pollution Degree 2

• EMC Standard: IEC 61326-1 and IEC 61326-2-2

• IP Rating: IP30, non-operating

• Meter Dimensions: 211 x 58 x 40mm

• External Sensor Dimensions: 264 x 33 x 28mm

• Meter Weight: 172g body only

• External Sensor Weight: 127g

• UPC / Barcode: 195112113455

• Unit of Measure: Each

• Application: Temperature measurement, humidity measurement, dew point, wet bulb, IAQ checks, HVAC diagnostics and environmental monitoring

Ideal For

• HVAC technicians

• Refrigeration technicians

• Facility maintenance teams

• Indoor air quality professionals

• Building maintenance workers

• R&D and manufacturing engineers

• Comfort testing of indoor air environments

• Temperature and humidity monitoring

• Dew point and wet bulb checks

• Hard-to-reach measurements using the external sensor

• Commercial buildings, plant rooms, workshops and service vehicles

• Trade tool kits and maintenance inspection kits

Professional Temperature and Humidity Meter for HVAC and IAQ Testing

The Fluke 972B Temperature & Humidity Meter is built for technicians who need accurate environmental readings for HVAC service, facility maintenance and indoor air quality checks. With temperature, humidity, dew point, wet bulb, external sensor measurement, data storage and auto logging, it provides practical measurement capability for professional diagnostics.

For HVAC technicians, refrigeration technicians and maintenance teams, the Fluke 972B delivers trusted Fluke performance, reliable environmental monitoring and convenient external sensor access for everyday field testing and inspection work.