The CORE sensor was the first non-invasive wearable that continuously and accurately measures core body temperature. Now, it's even better.

Meet the CORE 2 Sensor

The CORE sensors capture a vital measurement when trying to optimize performance: core body temperature. If it rises too much and too rapidly during intense exercise, your power and pace decline. By the time you notice you’re hot, it’s already too late. However, monitoring your core temperature can be difficult and surprisingly expensive to do with any accuracy.

The CORE 2 Body Temperature Sensor solves that.

This is an expansion on the first wearable device they made that continuously and accurately measures core temperature in real-time and sends the data to your Garmin or iOS Device. It’s the most advanced temperature tracking device on the market today and a revolutionary way to optimize your training. That being said, it’s remarkably simple to use.

Not only does it provide real-time measurements of your core temperature, the CORE 2 sensor also gives you an overview of your overall health and heat adaptation metrics. They have a range of insight now, like Heat Strain Index, Heat Zones, Heat Training Load, and Heat Adaptation. You can see how you are progressing over time and "train hot, race cool".

It has shown to be just as accurate as a $70 e-pill that you swallow.

If that wasn’t enough, this device has been used by some of the top professional athletes in training for events like Tour de France, IRONMAN, and more.

Highlights:

Continuous monitoring of core body temperature
Real-time data and metrics
Non-invasive. Just stick on your chest or attach to your HRM
Compact size: 41.9 x 29.4 x 7.1mm (no clip) | 45.1 x 32.6 x 9.6mm (with clip)
Weight: 8.6g (no clip) | 11.4g (with clip)
Battery: 6 days; up to 30 days with standby mode enabled
Waterproof: up to 1.5m (IPX7 rating)
Rechargeable with USB-C
Bluetooth low energy (BLE), ANT+ (2.4 GHz band)
Compatible with: iOS, Android, WatchOS, Wear OS and Garmin

What's In the Box?

CORE 2 Thermal Sensor
CORE 2 HRM Strap Clip
Magnetic USB-C Charging Cable
Product Information Guide
Fully Recyclable Packaging

How to Use the CORE 2 Sensor:

Just strap your CORE 2 device to your heart rate strap. You won't even notice you have it on after a few minutes.

Then you can view your data in real-time on your Garmin or with the CORE's own iOS application. The unit has Bluetooth BLE and Ant+ connectivity.

Effortlessly compatible with your current heart rate monitor strap, this device delivers a seamless experience right out of the box.

Delivery Time	Shipping Method
1 - 5 business days	FREE Standard Delivery
2 business days	FedEx 2Day
1 business day	FedEx Overnight

Workout

Daily

Pre-Workout

Gels

Drinks

Chews

Bars

Waffles

Whey

Collagen

Isolate

Protein Bars

Plant

Vitamin & Minerals

Athlete Performance

Strength

Sleep

Recovery

Gut & Biotics

Longevity

GLP1 & Weight Loss

Other

Ketones

Packs & Vests & Belts

Technology

Recovery Gear

Bottles

Socks

Hats & Headgear

Bags

Body

Feed Gear

Core 2 Temperature Monitor

Core 2 Temperature Monitor Reviews

Core 2 Temperature Monitor Questions