Train.Red FYER 2.0 – Muscle Oxygen Sensor
Core Pack (1 Sensor)
€958,80
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Train.Red FYER 2.0 – Muscle Oxygen Sensor
€958,80
Train Smarter. Understand Your Muscles.
The Train.Red FYER 2.0 is a lightweight wearable muscle oxygen sensor designed to provide real-time insights into how your muscles respond to exercise.
Using Near-Infrared Spectroscopy (NIRS), FYER measures muscle oxygen saturation (SmO₂), helping athletes and coaches better understand training intensity, local muscle fatigue, and recovery.
Why Choose Train.Red FYER?
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Real-Time Muscle Oxygen Monitoring: Track muscle oxygen saturation during training and exercise.
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Optimize Training Intensity: Gain insights into how your muscles respond to different workloads.
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Monitor Fatigue and Recovery: Understand oxygen utilization and recovery patterns.
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Lightweight Design: Weighing just 20 g, the sensor is suitable for a wide range of sports.
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Wireless Connectivity: BLE and ANT+ connectivity for integration with compatible devices and platforms.
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Train.Red App: Visualize muscle oxygen data and access actionable training insights.
- Multi-Sensor Monitoring: Connect multiple sensors for team or group monitoring.
Choose Your Package
Solo – 1 Sensor
A minimalist solution for athletes who want to get started with muscle oxygen monitoring using just the essential equipment.
Core Pack – 1 Sensor
An entry-level solution for individual athletes and coaches looking to explore muscle oxygen monitoring.
Starter Pack – 2 Sensors
Designed for athletes and coaches who want to expand their monitoring capabilities.
Professional Pack – 4 Sensors
A solution for coaches, sports scientists, and performance teams seeking to monitor multiple measurement locations or athletes.
Technical Specifications
| Feature | Specification |
|---|---|
| Technology | Near-Infrared Spectroscopy (NIRS) |
| Primary measurement | Muscle oxygen saturation (SmO₂) |
| Sampling frequency | 10 Hz |
| Weight | 20 g |
| Dimensions | 1.2 × 4.4 × 5.9 cm |
| Battery life | Up to 20 hours |
| Connectivity | Bluetooth Low Energy (BLE) and ANT+ |
| Water resistance | IPX7 |
| Measurement depth | Up to 20 mm |
| Data storage | Onboard storage |
Package contents
Solo – 1 Sensor
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1 × FYER Sensor
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1 × Charging Cable
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Free Train.Red App
Core Pack – 1 Sensor
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1 × FYER Full Set (Sensor, Charging Cable, Strap Pack S/M/L, 2 Plugs, Travel Pouch)
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Free Train.Red App
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Muscle Oxygen Course
Starter Pack – 2 Sensors
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2 × FYER Full Sets (each including Sensor, Charging Cable, Strap Pack S/M/L, 2 Plugs, Travel Pouch)
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Free Train.Red App
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Muscle Oxygen Course
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1 × 30-minute 1-on-1 Session
Professional Pack – 4 Sensors
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4 × FYER Full Sets (each including Sensor, Charging Cable, Strap Pack S/M/L, 2 Plugs, Travel Pouch)
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Free Train.Red App
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Muscle Oxygen Course
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2 × 30-minute 1-on-1 Data Sessions
Quick comparison
|
Included |
Solo |
Core |
Starter |
Professional |
|---|---|---|---|---|
|
Sensors |
1 |
1 |
2 |
4 |
|
Charging cables |
1 |
1 |
2 |
4 |
|
Strap Packs |
❌ |
1 |
2 |
4 |
|
Plugs |
❌ |
2 |
4 |
8 |
|
Travel Pouches |
❌ |
1 |
2 |
4 |
|
Free App |
✅ |
✅ |
✅ |
✅ |
|
Muscle Oxygen Course |
❌ |
✅ |
✅ |
✅ |
|
1-on-1 Sessions |
❌ |
❌ |
1 × 30 min |
2 × 30 min |
Who Is It For?
Train.Red FYER is suitable for endurance athletes, cyclists, runners, coaches, sports scientists, and performance professionals looking to incorporate muscle oxygen monitoring into their training and performance analysis.
Measure What Matters. Train with Insight.
ALL YOU NEED TO KNOW ABOUT THE Train.Red FYER 2.0
Train.Red tracks muscle oxygenation in real time using wearable sensor technology. Its app transforms muscle oxygen data into practical insights to help athletes and coaches make more informed training decisions.
Specifications
Train.Red FYER is a wearable muscle oxygen sensor designed to monitor local muscle oxygenation during exercise.
- Real-time muscle oxygen monitoring
- Non-invasive optical measurement
- Compact wearable design
- Suitable for endurance and performance training
Train.Red App
The Train.Red app allows athletes and coaches to visualize muscle oxygen measurements and analyze physiological responses during training.
App usage is included with the FYER package.
Compatibility
FYER works with the Train.Red app. For supported operating systems, devices and third-party integrations, please consult the manufacturer's latest compatibility information.
What is Train.Red?
Train.Red develops wearable muscle oxygen monitoring technology for athletes, coaches and sports scientists.
Its technology provides information about local muscle oxygenation to support data-informed training and performance analysis.
FYER vs. FYER PRO vs. PLUS 2.0: What's the difference?
Train.Red offers different sensor models designed for different measurement requirements and applications.
For an accurate comparison of technical capabilities, consult the manufacturer's latest product specifications.
SmO2 vs. Heart Rate: Why does muscle oxygen matter?
Heart rate reflects the cardiovascular response to exercise, while muscle oxygen saturation (SmO2) provides information about oxygenation in the measured muscle.
Monitoring both metrics can provide complementary insights into training intensity and physiological responses.
How does a muscle oxygen sensor measure SmO2?
Muscle oxygen sensors use optical technology, commonly near-infrared spectroscopy (NIRS), to estimate oxygenation within muscle tissue.
Light interacts with tissue and blood, allowing the sensor to estimate changes in local muscle oxygen saturation.