The subsequent technology CORE 2 physique temperature sensor is smaller, lighter, and smarter than ever. By monitoring your physique’s core temperature, this sensible little gadget guarantees to assist optimize the way you practice your physique for endurance driving and racing in sizzling climate. And perhaps the perfect half? Higher in each approach, it’s nonetheless the identical value as earlier than…
Core 2 physique temperature sensor is smaller, lighter & smarter

Simply over 4 years in the past CORE popped up on the professional biking scene with a small thermal sensor that racers had been clipping onto their heartrate monitor straps to trace their core temperature and higher practice their physique’s means to take care of racing within the warmth. Within the years since, Core sensors may be discovered within the coaching regimens of most prime skilled biking groups – a claimed >65% of the UCI WorldTour groups – as one other device to optimize rider output.
Now Core are again with a second-generation Core 2 sensor that they are saying is 48% smaller and 30% lighter, whereas delivering all the identical thermal monitoring capabilities. Plus, it is available in an up to date design and with extra sensible capabilities constructed into its {hardware} for future expanded capabilities!
How can Warmth Adaptation Coaching make you quicker racing in sizzling climate?
The core idea behind coaching with a Core physique temperature tracker is that at a sure level, as soon as your physique can’t shed extra warmth throughout intense efforts, energy output declines. However, you possibly can really practice your physique to raised adapt to warmth (primarily growing the quantity of plasma in your blood), to be able to higher tolerate strenuous exercise in sizzling climate with out as a lot lower in efficiency.


This previous yr Core launched new Warmth Zones and a Warmth Pressure Index of their companion app to make warmth coaching even simpler. After which a simplified Warmth Adaptation Rating that extra clearly exhibits coaching athletes “how their our bodies are adapting to thermal stress in real-time.” Their purpose has been make Warmth Adaptation Coaching simpler and extra intuitive for all athletes competing in sizzling climate.
“We’re excited to make among the thermal knowledge and insights utilized by the highest elite athletes on the earth extra accessible to endurance athletes. We all know that warmth has an enormous affect on efficiency, and with rising world temperatures it’s extra essential than ever to convey CORE know-how to extra athletes. We consider this newest replace will profoundly affect how athletes perceive and relate to thermal stress.”
– Ross McGraw, VP and World Head of Core
What’s new in Core model 2.0?


Most blatant is a smooth new design that Core describes as smarter and extra modular. We don’t know the precise dimensions but, however nearly 1/3 weight financial savings ought to push this new Core 2 underneath 9g!
Official dimensions replace:
- 41.9 x 29.4 x 7.1mm with out the modular TPU clip to connect to chest & arm straps (presumably for stick-on functions)
- 45.1 x 32.6 x 9.6mm with the modular clip (in comparison with 50 x 40 x 8.35mm for CORE 1)
- 8.6g with out clip, or 11.4g with the clip (in comparison with 12g for gen 1, making weight financial savings minimal ultimately)
- at the very least 6 day battery life in use, or as much as 30 days with standby mode enabled
You’ll positively overlook it’s there, at the very least with out the clip.
The brand new Core 2 sensor encompasses a new snap-together ‘removable’ design that goals to enhance sturdiness and safety so that you’ll make sure that it stays the place you place it. No extra snapping off your chest strap throughout intense efforts. The extra versatile TPU clip stays connected to your chest strap, and the ABS plastic sensor can individually be eliminated for charging or cleansing.
It makes use of the identical proprietary magnetic charging cable as earlier than, though now with a USB-C finish. However now has a brand new LED indicator mild that makes it simpler to verify “machine standing, battery life, and charging progress“.
In actuality, past what we are able to see from the skin, the up to date tech inside is a bit imprecise. It retains the identical Bluetooth LE & ANT+ connectivity to hyperlink the physique temp sensor to iOS, Android, Garmin & Wahoo gadgets for real-time monitoring. However Core additionally guarantees “Future-Prepared {Hardware}” upgrades that purpose to supply much more performance by way of over-the-air updates with “upcoming software program improvements“.
Core 2 – Pricing, availability & discounted upgrades for authentic Core customers


Excellent news for potential consumers, the brand new CORE 2 physique temp sensor will promote for a similar 270 CHF as the unique. That’s ~$296/288€ at present change charges, however Core says they’ll talk native pricing nearer to precise client availability. There’s the rub… the next-gen Core 2 sensors gained’t be obtainable till March 2025, so that you’ll have to attend a bit longer to dial in your warmth coaching.
However…


They’ve additionally diminished the unique 1st-gen Core sensors by 20% as they filter out remaining inventory. And, there will probably be a “Commerce-Up Program for Loyal Customers” providing a reduced value for the brand new Core 2 to any current Core 1 person who sends their authentic physique temperature sensor again to Core as soon as the brand new model is prepared. No phrase on how a lot that credit score could be and the way a lot cash you may save on a brand new one although.