




HeatSense Thermal Sensor
For accurate insights, the HeatSense thermal sensor must be paired with a compatible heart rate monitor and worn on the bicep or chest. If you don’t already have a heart rate monitor, check out the HeatSense Kit for everything you need.
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Included in every HeatSense Athlete Kit, the HeatSense Thermal Sensor is the core of our system—delivering real-time, athlete-specific heat safety data based on biometric readings.
Whether you’re replacing a sensor, outfitting additional athletes, or building your own kit, this compact device brings advanced thermal monitoring straight to the field.
Details
- Tracks thermal stress using multimodal algorithms backed by clinical, lab, and field tests
- Delivers personalized insights like Heat Strain Index and Acclimatization Score
- Works seamlessly with COROS or Polar heart rate monitors to give a full picture of exertion and risk (sold together in the HeatSense Kit)
- Worn discreetly on the bicep or chest—athlete-tested for all-day comfort
- Comes with a custom charger for recharging over the weekend
- Syncs with the HeatSense app and teams dashboard (for Teams customers) for in-session alerts and post-session reviews

HeatSense Thermal Sensor
Technical Specifications
- Compact Size: 1.65 x 1.16 x 0.28 inches (no clip) | 1.78 x 1.28 x 0.38 inches (with clip)
- Weight: 0.3 oz (no clip) | 0.4 oz (with clip)
- Battery: 6 days; up to 30 days with standby mode enabled
- Power Supply: USB-C magnetic adapter cable (included)
- Connectivity: Bluetooth low energy (BLE), ANT+ (2.4 GHz band)
- Waterproof: up to 1.5m (IPX7 rating)
- Research-backed accuracy: mean difference range of -0.01°C to +0.23°C

How it works
The HeatSense sensor is available as a standalone device, offering flexible options for athletes and teams.
While it provides powerful core body temperature tracking, it must be paired with a compatible heart rate monitor and an active HeatSense app membership to unlock full functionality and real-time insights.