e-Celsius Performance

Continuous core body temperature measurement

Main applications are:

Risk reduction for people in extreme situations, such as elite athletes. During exercise in a hot environment, thermal stress is amplified by the external temperature and the environment’s humidity. The saturation of the body’s thermoregulation mechanisms can quickly cause hyperthermia to levels that may cause nausea, fainting up to death.

Performance optimisation for elite athletes. This ingestible pill leaves the user fully mobile. The device keeps a continuous record of temperature during training session, competition and during the recovery phase. The data can then be used to correlate thermoregulation with performances. This enable the development of customised training protocols for each athlete.

e-Celsius® Performance can be used for all sports, including water sports. Its application is best suited to sports that are physically intensive like cycling, long distance running, triathlon, tennis or those that take place in environments with extreme temperature conditions, like diving or skiing.

Key figures :

e-Celsius® Performance pill:

  • Storage: Up to one year
  • Weight: 1.7g
  • Size: 17.7mm x 8.9 mm
  • Sampling: 30s
  • Accuracy: 0.2°C
  • Operational range: 25°C to 45°C
  • Store up to 2000 data
  • Wireless transmission (433 MHz)
  • Communication range: 1 m
  • Operational duration: 20 days


  • 3 pills per monitor
  • Multichannel: 7 monitors in parallel
  • Storage: 80 000 data per pill
  • Autonomy in charge: 24h
  • Size: 120mm x 70mm x 15mm
image 3
Core temperature measures of a ligue 1 soccer player.
image 3

e-Celsius® Performance, is a miniaturised ingestible electronic pill that wirelessly transmits a continuous measurement of gastrointestinal temperature.

The data are stored on a monitor called e-Viewer® Performance. The activation box is used to turn the pill on from standby mode and connect the e-Celsius® Performance pill with the monitor for data collection in either real time or by recovery from the internal memory of the e-Celsius® Performance pill. Each monitor can be used with up to three pills at once to enable extended use.

The monitor’s interface allows the user to download data to a PC/ Mac for storage. The pill is safe, non-invasive and easy to use, leaving the gastric system after one or two days, depending on individual transit time.






  • Effort hyperthermia
  • Performance optimization
  • Prevention of hypothermia
  • Clinical research

Are you interested
in our products?

Contact Us