Release your untapped power with

CORE Body Temperature Monitoring

Used by athletes, coaches and sports scientists


A vital metric for health and performance

When exercising your core body temperature rises and as this rises, your performance (power) goes down.

Monitoring your core body temperature will give you the knowledge and insights to improve your performance

How you can use the CORE sensor

Monitoring core body temperature

Daily core body temperature

Realtime data

Core body temperature trends

Trends over time

Workout and activity mointoring

Monitoring workouts

Used by top athletes and teams

INEOS Grenadier CORE sensor
Movistar Team CORE sensor
Trek Segafredo CORE sensor
Ceratizit WNT Pro Cycling CORE sensor
Lotto Soudal CORE sensor
BORA hansgrohe CORE sensor
Astana CORE sensor
Kristian Blummenfelt CORE sensor

Kristian Blummenfelt

Gustav Iden CORE sensor

Gustav Iden

Alistair Brownlee CORE sensor

Alistair Brownlee


Up to now, core body temperature could only be measured continuously using invasive methods like thermometers, probes and electronic pills or in a controlled environment.

The CORE sensor is the first wearable device that continuously and accurately measures core body temperature on the go.

The CORE sensor seamlessly integrates and lets you see your live data on the Smart Phone App and record directly to Garmin, Wahoo and COROS. Learn More

Get a CORE sensor


How to use Heat Training and the Heat Ramp Test for sports.

Heat Training for Performance

Heat affects performance

“In long distance running events, the ability of bodies to maintain or regulate heat is what ultimately determines how long athletes can last at a given intensity, along with their internal energy state and their fitness,”
Peter Vint, High Performance Sport Expert

Temperature verses speed

With an environmental temperature of 10°C/50°F, our runner can finish a marathon in 3:30.

For each 5°C/9°F increase in outside temperature, the runner needs an extra 5 minutes to finish.

Core body temperature fundamentals

No more guessing how hot or cold you are, with CORE sensor and accurate measurement data you can train and race more effectively.

CORE Body Temperature Sensor

plus accessories to complement your CORE

The CORE sensor uses innovative sensor technology created in Switzerland and utlised by experts worldwide.

Learn More

Internal and external studies and scientific research projects using the CORE sensor are documented here.

Read More