Description
What's in the box?
✔️ Train.Red Sensor FYER
✔️ Charging cable
✔️ Patch Pack (20 adhesive patches)
✔️ Strap Pack (sizes S-M-L)
✔️ Waterproof USB plug
✔️ Durable travel bag
Muscle oxygen sensor Train.Red FYER 2.0 + app.August 9, 2025September 2, 2025
Train.Red FYER 2.0 muscle oxygen sensor + app
715,00 €
Achieve top-level performance with the NEW Train.Red FYER 2.0the most advanced portable muscle oxygen sensor on the market. While athletes invest in equipment, training plans and supplements, the real driver of performance is often overlooked:Â muscles.
With the monitoring of the muscle oxygen (SmO₂%) FYER helps you optimise training, recovery and performance like never before. Plus, you can connect more than 10 FYER sensors to a single smart device - perfect for the team monitoring and group training.
SPECIFICATIONS:
- Size:Â 1.2 x 4.4 x 5.9 cm (0.5 x 1.7 x 2.3 in)
- Weight:Â 20 g
- Measuring depth:Â Up to 20 mm in the muscle
- Distance between the light source and the detector:Â Up to 35 mm
- Waterproof:Â Yes (swimming is possible by adding a plug)
- Battery life:Â Up to 20 hours of active use
- Speed:Â 10 Hz
- Connectivity:Â BLE AND ANT
- IMU:Â gyroscope and accelerometer
- On-board storage:Â Your data always available
- Multi-device connection: Connect more than 10 FYER sensors to 1 smart device to monitor teams or groups.
- Materials:Â High-quality biocompatible ABS and TPE
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