CORE Manual

An introduction to using and maintaining your CORE

Unbox your CORE

With each CORE device you will find the following contents. (Look under the black cardboard insert):

• CORE Sensor
• Adhesive Patches
• Securing Clips
• Magnetic USB Charging Cable
• Quick Start Guide
• Product information sheet


Connect the charging cable to any USB power source (e.g. phone charger or computer).

The magnetic end of the cable fits easily to the CORE device .

Fully charging a drained battery takes about two hours and one battery charge will last five to six days.

Turn On CORE

Disconnect the charging cable and shake CORE until the green light starts blinking.

This indicates that CORE has begun to measure and that it’s ready to connect with your smartphone, smartwatch or sports computer.

Download CORE App

Download and install the iOS CORE App or Android CORE App on your smartphone.

Connect with the App

Start the CORE app and follow the instructions on the screen. Ensure Bluetooth is enabled on your smart phone!

The CORE App lets you:
• Connect to CORE sensors
• View your temperature date
• Perform software updates
• Pair to a Heart Rate Monitor

For your new CORE, ensure you update to the latest firmware.

Place CORE on the body

Position CORE on the torso / chest area, about 20cm below the armpit using a heart rate monitor strap or the provided medical patches for the most accurate core body temperature measurements.

CORE can be worn elsewhere on the body such as on the arm or wrist however measurement accuracy can be reduced.

When CORE is mounted on a strap, don't forget to use the provided black plastic clips to ensure it remains in place.


CORE continuously measures and broadcasts your core body temperature.

Live and historical data (up to 48 hours) can be viewed on the CORE iOS and Android App.

Data is transmitted over ANT+ and BLE and can also be viewed live and recorded on supported Wahoo, Garmin and COROS computers and watches (in the FIT file) and then loaded in third-party software for analysis.


For performance sports, CORE needs to be paired to a heat rate monitor (once) and it automatically use the algorithm optimised for sports performance to deliver accurate core body temperature when it detect the heart rate monitor.

How to View / Analyse the data from CORE


You can easily ensure you get a long life from your CORE device with these steps.

Rinse your CORE device with water and mild soap after each use.

The device can be disinfected with rubbing alcohol (ethanol or isopropanol).

Elevated temperatures will shorten battery life. Store CORE in a dry and cool location.

CORE Help and Support

We ensure the manuals and video guides for CORE are kept up to date.

The CORE FAQs answer many of the common questions from ordering and shipping to using CORE and trouble-shooting.

You can also contact us via the Contact/Messenger (green button on the bottom right of the website) or the contact form. Your query will be forwarded directly to the person in the friendly CORE team who can best assist.