CORE 2 Sensor

Smaller, Lighter, Smarter
Now 48% smaller and 30% lighter than the original CORE Sensor, for a barely-there fit that won’t slow you down.

Medical-Grade Precision
Get real-time core body temperature readings with lab-level accuracy — trusted by elite athletes and coaches.

Train Harder, Adapt Faster
Unlock your body’s full potential with targeted heat training — boosting VO2 max, haemoglobin mass, and power output.

Stay Ahead of Heat Stress
Live thermal load monitoring helps you pace, hydrate, and perform smarter in both training and competition.

Conquer Any Climate
Master acclimatisation and stay comfortable in hot conditions — train your body to go the distance, whatever the weather.

Modular, Versatile, Athlete-Friendly
Clip it to your chest strap, sports bra, or skin — designed to fit your routine, your gear, and your goals.

At-a-Glance Feedback
Built-in LED light shows device status, battery level, and charging progress — no guesswork, no surprises.

Smarter Training Starts Here
Sync seamlessly with the CORE App for deeper insights, personalised heat adaptation advice, and full performance tracking.

Proven at the Highest Level
Used and trusted by Olympians, endurance athletes, and top sports scientists worldwide.

Non-Invasive & All-Day Wearable
Comfortable, discreet, and easy to integrate into your existing kit — no wires, no patches, no hassle.

The CORE 2 Sensor uses advanced thermal energy transfer technology to monitor your core body temperature continuously and in real time without the need for invasive patches or ingestible pills.

Worn comfortably during training, the sensor measures both your skin temperature and the heat your body is generating (heat flux). Sophisticated algorithms then convert that data into a precise, medical-grade core temperature reading, giving you the same level of insight trusted by top sports scientists and elite athletes.

Paired with your heart rate monitor and the CORE Mobile App, the CORE 2 offers a complete picture of your thermal load. Spot early signs of overheating, adjust your pace and cooling strategies on the fly, and take the guesswork out of heat management.

This isn’t just about data — it’s about using real-time feedback to train smarter, race harder, and recover faster. Whether you're preparing for a hot-weather race, fine-tuning a heat adaptation block, or simply looking to get more from every session, CORE 2 helps you manage the one thing every athlete overlooks until it’s too late: body temperature.

Compact & Lightweight
Medical-Grade Accuracy
Heat Training Optimisation
Real-Time Monitoring
CORE Mobile App Integration
Used by Elite Athletes
Non-Invasive & Wearable