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CORE 2 | Body Temperature Sensor

€314,95€260,29

Directly available

    Klantenservice_TriathlonWorld.nl Learn more about the core 2 body temperature monitor

    The Core 2 Body Temperature Monitor is a must have gadget for serious athletes. Our product expert Lenno is happy to tell you more!

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    Core_2_Thermal_Sensor Core_2_Thermal_Sensor

    train hot & race cool

    core 2 body temperature sensor

    core 2 body temperature sensor

    The CORE 2 sensor is the latest advancement in real-time thermal monitoring, designed to support athletes in their training and performance. Whether you want to improve your hemoglobin mass and VO2 max through heat training or monitor your performance on race day, the CORE 2 helps you better tune your efforts and manage your body temperature efficiently.

    Core_2_Thermal_Sensor

    Why Heat Monitoring Makes the Difference

    During intense exercise, 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 prevents overheating and loss of efficiency, which is especially essential during long races and training in hot conditions.

    Core_2_Thermal_Sensor

    Accurate and Reliable Measurements

    With measurements backed by clinical and field testing, the CORE sensor delivers unparalleled accuracy. Rely on 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.

    Core_Body_Sensor

    New and Improved Design

    The CORE 2 is 48% smaller and 30% lighter than the previous generation, ensuring ultimate comfort and ease of use during your workouts.


    Brighter Battery Status: The new red LED light provides a clear indication of battery status, so you always know when it's time to recharge.


    Modular Design: The device can be easily removed from the strap clip, making charging easier and giving you more options for wearing the sensor comfortably.

    Core_2_Thermal_Sensor

    Seamless Integration with Your Devices

    The CORE 2 Body Temperature Monitor is designed to fit effortlessly into your existing workout setup. With support for both Bluetooth and ANT+, this advanced sensor communicates seamlessly with virtually all popular sports devices and platforms.

    When your core temperature rises during intense exercise, your power and pace decreases.

    That's why the world's best coaches and athletes use CORE to optimize their heat acclimatization to improve performance.

    • Train Hot

      CORE allows you to safely apply heat acclimatization - a form of exercise that has been shown in controlled laboratory studies to increase hemoglobin mass, VO₂max, lactate threshold, power output and blood plasma volume.

    • Race Cool

      Heat training makes your body more resistant to heat, allowing you to stay cooler and perform at a high level for longer - regardless of the temperature on race day. CORE also allows you to monitor your thermal values in real time, so you can intelligently adjust your pacing and cooling accordingly.

    Frequently asked questions about the core 2

    What are the differences between the CORE and CORE 2 Body Temperature Monitor?

    The CORE 2 Body Temperature Monitor is a significant upgrade from the original CORE, with a number of impressive improvements that enhance the overall user experience. First, the CORE 2 is 48% smaller and 30% lighter than the previous generation, providing ultimate comfort and ease of use even during the most intense workouts. This makes the sensor ideal for athletes who want a compact and lightweight device without compromising on performance.

    In addition, the CORE 2 has an improved battery status indicator. The new red LED light clearly indicates the battery status so you always know when it's time to recharge, ensuring you never run out of battery unexpectedly during your session.

    The CORE 2's modular design also offers more flexibility. The sensor can be easily removed from the strap clip, making charging easier and giving you more options for wearing the sensor comfortably during your workouts.

    The CORE 2 also offers enhanced connectivity, with a wider range of compatibility with sports watches and cycling computers from brands such as Garmin, Suunto, Wahoo and COROS. This ensures that you always have access to your real-time thermal data on your favorite devices.

    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 tries to cool itself by sending blood from the muscles to the skin, where it is cooled by sweat evaporation. However, this process can reduce your speed and performance. You can minimize this effect in two ways. First, by monitoring your core temperature during workouts and races, you can make strategic decisions about pacing and cooling, keeping you cooler and maximizing your performance. Second, with heat training, you can help your body adjust to higher internal temperatures by race day. This can lead to significantly better performance - in one study, cyclists improved their speed by 8% in a time trial 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 display the Heat Strain Index in real time, showing you instantly how much heat load the body is currently experiencing.

    How do I use CORE during a workout or race?

    During heat training, the CORE data helps you keep your core temperature within your heat training zone. During a race, the CORE sensor tells you when to employ 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 within a 2-6 week period. Most athletes notice significant improvements after only 4-5 sessions, and these benefits can be maintained during the season with only 2-3 sessions per week. Each session should consist of a continuous 45-60 minute 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 should 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 (more 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 well understood. It has been shown by sports scientists that heat training allows the body to better cope with higher temperatures, cool itself more efficiently and perform well in both cool and hot conditions. Physiological changes that occur include an increase in blood plasma and hemoglobin, increased sweat production and 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 the thermal energy transfer between the body and the environment. An AI-based algorithm uses this data to calculate the body's core temperature with medical accuracy. Extensive testing has validated the accuracy of the CORE data against internal body temperature data collected using more invasive methods, such as ingested electronic pills. This means that athletes can reliably use CORE data to understand what is going on inside their bodies with a completely non-invasive wearable that is one of a 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 watches and cycling computers from Garmin, as well as a selection of devices from COROS, Suunto, Wahoo and Hammerhead. Functionality with Apple and wearOS watches is currently limited but improved. 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 highly recommend pairing CORE with a heart rate monitor. Heart rate helps the sensor accurately convert the measured heat flux into core temperature. During daily activities (i.e., non-sporting activities), core temperature data are accurate both with and without a heart rate monitor.

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    CORE 2 | Body Temperature Sensor