C21 is a combined metabolic system designed for both stationary and portable metabolic testing. It integrates a traditional stationary metabolic cart system with a portable unit, offering flexibility for various testing environments.

Hardware & Design

• Docking Station & Mobile Unit: The system allows seamless switching between stationary and portable testing.
  • Advanced Display & Controls: 3.5” touch display with hard key controls for easier operation.
• Battery & Power Management:
  • Li-ion batteries (live-swappable) with up to 1,500 charging cycles.
  • Can operate independently of mains power for up to 12 hours.
  • Protective circuit prevents battery fires and wear.

Metabolic Testing & Accuracy

• Dual CO₂ analyzers (one in the docking station) allow real-time environmental CO₂ adjustments, improving accuracy.
• Optimized Gas Analysis:
  • Enhanced signal synchronization and humidity/temperature compensation.
• Improved breathing gas detection for more stable and accurate readings.

Connectivity & Integration

• Wireless Connectivity:
  • Bluetooth (BTLE), Wi-Fi, and long-range Bluetooth (>1000m for C21-X).
  • Supports up to 15 connected devices (HR, SpO₂, Power Meters).
• Data Management:
  • Micro SD card support (up to 2TB) with encrypted storage.
  • Direct storage in MSS database for secure data handling.
• GPS & Motion Tracking:
  • Integrated global navigation system (GPS, Glonass, Beidou, Galileo).
  • Gyroscope & magnetic field sensor for motion tracking.

Versions of C21

1. C21-C (Fully Stationary)

• Functions as a classic stationary metabolic system.
• Supports hardware extensions like treadmills, ergometers, and heart rate monitoring.

2.C21-R (Intermediately Stationary)

• Works with a docking station and battery operation (up to 12 hours).
• Suitable for locations with inconsistent power supply.
• Can be detached for tests within a 50m range and short time test as: resting and 6 minutes walking.

3.C21-T (Intermediately Mobile)

• Designed for indoor mobile testing.
• Bluetooth range of 50m with up to 5 device connections.
• Comes with vests, Click & Go mounts, HR belt, and a lightweight setup.

4.C21-X (Fully Mobile)

• The most advanced model, designed for outdoor field testing.
• Bluetooth range of >1000m, supports 10 device connections.
• Includes GPS, HR monitoring, a long-range receiver, and a field test bag.