Core Body Temperature Sensor for Wearable and Med-Tech Applications

Core body temperature is an important vital parameter to determine the health status of a person. greenTEG offers the world’s first core body temperature sensor for continuous and non-invasive measurements. The miniaturized sensor is ideal for the integration into wearable and med-tech devices with skin contact. Contact us regarding integration of the gSKIN® XU sensor in your device or integration of our stand-alone device, CORE, into your environment.

gSKIN® XU integration

Integrate our Core Body Temperature sensor solution
 into your device.

CORETM integration

Stand-alone CORE Body Temperature measurement wearable system ready to use


Contact us for more information 



Small sensor ideal for wearables


Enables continuous measurement


Proven accuracy


Works under all conditions


COREmedical is our device for medical purposes. 

Learn more about CORE medical


Application examples

Patient Monitoring

Changes in the core body temperature often indicate health-related problems before other symptoms show. Therefore,  accurately monitoring the core body temperature of patients can help to identify health issues of patients at an early stage.


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Enhanced Sports Performance

Real sports athletes want to perform at the right level at the right time. In addition to other vital signals, core body temperature gives an athlete crucial information about his performance.


Learn why core body temperature matters in sports



Early Detection of Health-Related Issues

Many significant health issues leave traces in a person’s natural day-night temperature cycle, also known as circadian cycle. The simplest way to monitor the circadian cycle is to measure core body temperature. With greenTEG's sensor, core body temperature can be measured easily and without having a significant impact on the daily routines of the subject. Changes in the circadian cycle, measured via core body temperature, can help drawing conclusions about the following health issues: jetlag, narcolepsi, insomnia, sleep quality, burnout, Alzheimer's, Parkinson's, ovulation status and others.


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Technical Information


When working with skin temperature sensors to measure the physiological body temperature, a major challenge are the thermal changes from outside influences, e.g. leaving a warm building to the cold environment, or when clothes or blankets cover the sensor.

Using a heat flux sensor in combination with a reference skin temperature sensor allow for compensation of thermal influences from the outside resulting in the real body temperature signal.

Advantages of greenTEG's measurement approach:

  • Integration solution into any wearable in contact with skin
  • Algorithm to determine body temperature for low activity
  • SMD mountable 2mm x 2mm XU sensor

Contact us if you have any questions.

Core Body Temperature Measurement Case Studies

greenTEG's solution for non-invasive core body temperature measurements has been demonstrated in independent and internal case studies and measurements:

  • Core Body Temperature Measurements with greenTEG's Solution: Independent Medical Study Confirms Accuracy: Learn more
  • Non-Invasive Core Body Temperature Measurements During Sleep and Daily Life: Learn more
  • Core Body Temperature Measured Non-Invasively on the Wrist With greenTEG`s Body Temp Patch: Learn more

Meet us: Medica 2020
Medica 2020 is cancelled. We will participate in the online WT studio presenting our technology globally. Subscribe to our newsletter for regular updates!

New COREresearch

For your evaluation studies, we now offer the COREresearch for elevated body temperature monitoring. Contact us for additional information or click on the button below for more information about the patch and its potential application for COVID-19 related use cases.

Buy COREresearch




Download manual, brochures and informational materials about our use cases, as well as the gSKIN® XU

Case study: Core Body Temperature monitoring for well-being and safety at work.

Case study: Core body temperature monitoring during daily life.

Datasheet gSKIN® XU sensor


The TV show Einstein (Swiss SRF channel), portrayed on 10th October 2019, our core body temperature sensor as part of a research about the prevention of neurodegenerative diseases. Click on the image below to watch the clip (it starts at minute 23:00, only in German).”