calera<sup>gt</sup> Health

Sleeping monitoring

Using heat flux sensors to measure core body temperature in sleep patterns provides us with valuable health insights.


Disturbance to sleep patterns can be one early indicator of illness. Medical and scientific professionals currently use heat flux sensors for their studies as they provide more meaningful data than conventional methods.

greenteg is currently conducting a range of studies using AI algorithms. This collected data may supply valuable findings to drive the ongoing development of calera® sensor technology.

The more data we have, the clearer it becomes: the potential is enormous, and digital innovations in monitoring of core body temperature could also lead to useful applications in many other areas.


The calera® monitor can be deployed as a compact wearable – in combination with a chest strap, smartwatch or medical monitor patch, for example. The wearable is comfortable enough to wear during sports, at work or even at night.

As a white-label product, the monitor has a wide range of applications and sector-specific solutions for app functions.

greenteg supports device manufacturers in specific OEM integrations of calera® technology in medical applications.


  • Non-invasive, continuous real-time measurement of core body temperature
  • Light and compact
  • Comfortable to wear and waterproof
  • Wireless connectivity
  • Easy to control via app
  • Compatible with Garmin, iOS and Android smartwatches and smartphones
  • Storage, analysis, and monitoring of clinically relevant data via a cloud solution
  • Certified Swiss sensor technology