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Heat Flux Sensors for Heat Transfer Measurements

Economical heat flux sensor


Item# HFS-5

Volume discounts available
Volume Discount Schedule
Quantity Price each
1-9 C$455.86
10-24 C$433.07
25-49 C$423.95
50-99 C$405.72
100-199 C$396.60
200+ C$387.48

In stock

Lead Time (If not in stock): 3 weeks
Economical heat flux sensor HFS-5 HFS-5
  • HFS-5 Economical sensor for use in R&D heat transfer measurements and thermal systems evaluation
  • HFS-6 Larger sensor for use in buildings thermal evaluation and higher sensitivity
  • UHFS-09 Larger sensor, highest sensitivity and waterproof for use in geothermal studies
  • HFS DAQ as the accessory of HFS series, low-cost data acquisition system to accurately measure the signals outputted from HFS heat flux sensors and their integrated thermocouples
  • For sensor application we suggest OMEGATHERM™ High Temperature and High Thermally Conductive Paste

HFS-5 Model Options

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Edit these specs to order a different model. Not all combinations are valid. Options compatible with previous selections will be in bold.

*Highlighted options are not compatible. Please select a different combination.

Process Temperature Range
Encapsulation Material
Nominal Sensitivity
Sensor Thickness
Specific Thermal Resistivity
Absolute Thermal Resistance
Heat Flux Range
Response Time
Sensing Area Dimensions
Total Sensor Dimensions
Sensing Area
Total Sensor Area
Thermocouple Type
Number of Wires

Omega's Heat Flux Sensors provide accurate readings, high sensitivity with fast response times. The sensors are rugged and economical. They are ideal for R&D applications ranging from aerospace, industrial processes to building sciences applications. Do not forget to get your Omegatherm high temperature and high thermal conductive paste for mounting.

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What data logger can be used with your heat flux sensors?

Asked by: Navid93
Thank you for the inquiry. We have the new Layer N system with SP-016-1. Part of the modular Layer N system; https://www.omega.com/en-us/layer-n/smart-probes/p/SP-016-Series Best regards OMEGA
Answered by: AENwlk
Date published: 2020-10-06

If I need to calculate the total heat power through HFS-5, should I multiply the measured heat flux with sensor area (6.5cm2) or total area (9.2cm2)?

Asked by: han2021
Hi Han2021 Thank you for the inquiry. Please forward this question to TEMP@OMEGA.CON. Best regards OMEGA
Answered by: NorwalkAE_RS
Date published: 2022-05-17

What is the maximum sampling rate for the HFS-5?

Asked by: Trevor42
Hi Trevor C Thank you for the inquiry. Sample rate would be determined by the instrumentation used. Response time of the sensor is 0.6 seconds as noted on the data sheet. Best regards OMEGA
Answered by: NorwalkAE_RS
Date published: 2022-05-17

What is the output voltage range for HFS5?

Asked by: Trevor42
Hi Daniel18 Just under 1 mv at max heat flux. You'll need a meter with micro volt level resolution. Best regards, OMEGA
Answered by: NorwalkAE_RS
Date published: 2021-12-23

Can the HFS-5 heat flux sensor be used outside in the weather?

Asked by: Trevor42
Hi Trevor42 Thank you for the inquiry. This sensor is not suitable for outdoor weather conditions. Best regards, OMEGA
Answered by: NorwalkAE_RS
Date published: 2022-01-24

What is the core material (dark brown) in the HFS-5 sensor and whether it distributes the heat laterally?

Asked by: han2021
Hi Han2021, Please forward this question over to our temperature group for review; TEMP@OMEGA.COM Best regards OMEGA
Answered by: NorwalkAE_RS
Date published: 2022-05-17

we are using the HFS-5 Heat Flux+ T type Thermocouple sensor and the HFS-DAQ. I need to add 8' of length to the wire leads of the sensor to reach our test location. Do you sell these as integral cables? if not, can you suggest extension cables? Thanks

Asked by: Keithgm
Hi Keithgm, Thank you for the inquiry. We d not offer integrated cable unfortunately. For the thermocouple side; You'll need type T extension wire similar to https://www.omega.com/en-us/temperature-measurement/temperature-wire-and-cable/thermocouple-wires/extt-tx-wire/p/EXTT-T-24-25. For the heat flux side you can use 2 conductor instrumentation wire (copper). Best regards OMEGA
Answered by: NorwalkAE_RS
Date published: 2022-08-23

Hi, I am following up on my question about the output voltage. I need to make sure that my data logger is scaled properly. This sensor has a heat flux range of +/- 150 kW/m^2. Does +/- 150 kW/m^2 correspond to +/- 1 mV respectively? Thank you.

Asked by: Trevor42
Hi Daniel8, Please forward your request to TEMP@OMEGA.COM for assistance in scaling a datalogger or other meter. Best regards, OMEGA
Answered by: NorwalkAE_RS
Date published: 2022-01-11
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