For sporting or high-intensity activities a heart rate monitor needs to be paired with CORE to ensure accuracy.

The heart rate signal delivers crucial metrics that help CORE recognise fast changes in intensity (for example a cyclist who reaches the summit, then descends).

CALERA/CORE can be paired to most existing (current generation) heart rate monitors.

This is the CardioSport TP5 Heart Rate Monitor which has proven to be a reliable and robust solution that is compatible with CALERA/CORE.

The CardioSport Heart Rate monitor supports both ANT+ and BLE and is compatible with most sports hardware and software.

The CardioSport TP5 comes with the strap that can be adjusted to fit. It also comes with a battery included which is replaceable and rated for 900+ hours of use.

Please note, the CALERA/CORE device can be purchased separately and is not included. The photos are for demonstration.

https://www.cardiosport.com/copy-of-tp3-duplex-instructions-1