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CORE | Body Temperature Monitor

€299,95€247,89 -24% -24%
€229,00€189,26

    Foto Rob Productexpert bij TriathlonWorld.nl Learn more about the core body temperature monitor

    The Core Body Temperature Monitor is a must have gadget for serious athletes. Our product expert Rob is happy to tell you more!

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    train hot & race cool

    core body temperature sensor

    core body temperature sensor

    The CORE Body Temperature Monitor is more than just a sensor – it’s an innovative tool for triathletes who strive for peak performance and want to monitor their body in detail. With real-time temperature measurement, this compact, lightweight sensor helps you gain insight into your core temperature at any given moment, so you can perfectly adapt your training and race strategy to the conditions.

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    Why Heat Monitoring Makes the Difference

    During intense efforts, your core temperature rises, which can affect your performance. The CORE sensor allows you to continuously monitor your temperature, allowing you to make strategic decisions about hydration and cooling. This helps you avoid overheating and loss of efficiency, especially essential during long races and training in hot conditions.

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    Accurate and Reliable Measurements

    With measurements backed by clinical and field testing, the CORE sensor delivers unmatched accuracy. Trust ISO-certified technology for reliable feedback, with an average deviation of just 0.21 °C. The CORE Body Temperature Monitor gives you the data you need to excel.

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    Comfortable and Durable Design

    The CORE sensor is waterproof and specially designed to be worn without hindrance, whether you’re running, cycling, or recovering after an intense session. With a battery life of 6 days of continuous monitoring and up to 6 weeks in sleep mode, you never have to worry about charging during training weeks.

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    Simple Connectivity for Unhindered Use

    Designed for ultimate compatibility, the CORE Body Temperature Monitor fits perfectly into your existing sports ecosystem. With Bluetooth and ANT+ support, this smart sensor integrates seamlessly with popular devices like Garmin , Wahoo and various other training platforms. This means you can sync your core temperature data directly to your favorite training apps and sports watches for real-time insights into your body temperature, without the hassle of carrying additional devices.

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      Heat training

      With precision backed by clinical, lab, and field testing, CORE makes it easy to train in the right temperature zone. When your body adapts to heat stress, you stay cooler longer on race day, dramatically improving your performance in both hot and cold conditions.

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      Cooling strategy

      CORE helps you understand your thermal regulation trends so you can implement cooling strategies, like hydrating or pouring water over your head, at exactly the right time to optimize your performance.

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      Real-Time Monitoring

      Connect CORE to the sports technology you already use to monitor your core temperature in real time. With precise insights into your thermal load and its impact on power and pace, you’ll have the data you need to perform at your best.

    Why is monitoring core temperature with CORE important for sports performance?

    Monitoring core temperature with CORE is crucial for athletic performance because it helps athletes understand how their body responds to heat stress. Higher core temperature can lead to decreased performance as the body struggles to cool down. By monitoring core temperature in real-time, athletes can make strategic decisions about pacing and cooling, allowing them to perform more efficiently in both hot and cool conditions. These insights allow athletes to optimize their training and competition, and improve their overall performance.

    everything you need to know about core body temperature sensor

    Why is core temperature important for performance?

    When your muscles work hard, they generate heat. When enough heat is produced, your core temperature rises. Your body attempts to cool itself by shunting blood from your muscles to your skin, where it is cooled by sweat evaporation. However, this process can reduce your speed and performance. There are two ways to minimize this effect. First, monitoring your core temperature during training and racing allows you to make strategic decisions about pacing and cooling, keeping you cooler and maximizing your performance. Second, heat training can help your body adapt to higher internal temperatures by the time race day arrives. This can lead to significantly improved performance – in one study, cyclists improved their speed in a time trial by 8% after just 10 days of heat training prior to the race.

    What data does CORE measure and display?

    The CORE sensor measures both core body temperature and skin temperature. This data is displayed live in the CORE app and on compatible sports devices. The app and some Garmin devices also show the Heat Strain Index in real time, which gives you an instant view of how much heat strain the body is experiencing at that moment.

    How do I use CORE during a workout or race?

    During heat training, CORE data helps you keep your core temperature within your heat training zone. During a race, the CORE sensor tells you when to implement cooling strategies and when to reduce power or pace to avoid overheating.

    How much heat training is needed to see results?

    The greatest benefits are achieved after 10–12 sessions over a 2–6 week period. Most athletes notice significant improvements after 4–5 sessions, and these benefits can be maintained during the season with as few as 2–3 sessions per week. Each session should consist of 45–60 minutes of continuous effort within the heat training zone. This is the recommended training approach, although it has been shown that even less frequent heat training can significantly improve performance on race day.

    I only race in cool weather. Why would I add heat training?

    Heat training helps your body adapt to perform more efficiently at elevated core temperatures. It also increases blood plasma and hemoglobin levels, which improves your performance (increased power at lactate threshold and VO2max) in both cool and warm conditions.

    What is the scientific basis for the benefits of heat training?

    The impact of heat on human performance has been extensively studied and is well understood. It has been demonstrated by sports scientists that heat training enables the body to better cope with higher temperatures, cool itself more efficiently and perform well in both cool and warm conditions. Physiological changes that occur include an increase in blood plasma and hemoglobin, increased sweat production and an earlier onset of sweating. Learn more from this selection of relevant research articles.

    Is the sensor really accurate? How is it tested?

    The CORE sensor measures thermal energy transfer between the body and the environment. An AI-based algorithm uses this data to calculate the core body temperature with medical accuracy. Extensive testing has validated the accuracy of CORE data against internal body temperature data collected with more invasive methods, such as swallowed electronic pills. This means athletes can reliably use CORE data to understand what’s happening inside their bodies, with a completely non-invasive wearable that is the first of its kind.

    Is CORE compatible with my current sports technology?

    The CORE app is available on both iOS and Android platforms. The sensor is compatible with most Garmin watches and bike computers, as well as select devices from COROS, Suunto, Wahoo and Hammerhead. Functionality with Apple and wearOS watches is currently limited, but improving. Training software with full compatibility includes Today's Plan, Intervals.icu and Golden Cheetah. The premium version of Training Peaks is also compatible.

    Do I need a heart rate monitor to use CORE?

    To get the most accurate data during sports activities, we strongly recommend pairing CORE with a heart rate monitor. Heart rate helps the sensor to accurately convert the measured heat flux into core temperature. During daily activities (i.e. non-sports activities), core temperature data is accurate both with and without a heart rate monitor.

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    CORE | Body Temperature Monitor