Getting Started: Step-by-Step
Experience the simplicity and power of Ledsreact Pro from setup to analysis.
1. Setup & Power On
Unbox your Ledsreact Pro from the included carrying case, set it up at hip height using the tripod, and turn it on. It's ready in seconds for action.
2. Connect & Mark the Drill
Open the app and login, connect to the device in seconds, and define your testing area using your colored cones or other markers. Position the device according to the test instructions.
3. Select Test & Players
Choose from pre-set tests or design custom drills. Assign athletes quickly.
4. Athlete Performs
Athletes follow audio-visual cues. Radar precisely tracks every movement.
5. View Results
See total times live in the app, or view the detailed performance metrics on the Ledsreact web platform.
Why It Works:
The Power of Radar
Ledsreact Pro utilizes advanced Frequency Modulated Continuous Wave (FMCW) radar,
a significant leap beyond conventional radar guns and other timing tech.
Here's how it provides superior accuracy and comprehensive data:

Smart Signals ('Chirps')
It transmits signals with continuously changing frequencies (chirps) at around 24 GHz, unlike the single frequency of basic radars.
Dual Measurement: Speed & Distance
By analyzing the reflected chirp, it precisely measures both an athlete's velocity (via Doppler shift) and their exact distance (via time delay).
Detailed Target Mapping
Sophisticated Range-Doppler processing and Kalman filtering creates a detailed map, pinpointing targets by both their distance and velocity.
Comprehensive Movement Tracking
Unlike timing gates and conventional radar guns, this enables tracking of not just speed, but also precise position, direction, acceleration, and even multiple targets simultaneously.
Validated for Professional Accuracy


Example of speed measured by Ledsreact Pro (red line) matching with Qualisys 3D motion capture (green line)
Gold Standard: 3D Motion Capture
Ledsreact Pro was benchmarked against the Qualisys 3D motion capture system, a gold standard in biomechanical analysis (sub-millimeter accuracy at 650 fps), to ensure and demonstrate its high precision in measuring athlete performance across various drills.
- Purpose & Method: Ledsreact Pro validation against Qualisys (gold standard motion capture) for accuracy in agility testing.
- Setup: Qualisys uses multi-camera 3D tracking (0.5mm precision, 650 fps) with meticulous calibration; athletes wear four markers for spatial tracking.
- Results (Sprint 10m & 20m): Average time difference ~ -0.03s; MAE for speed ~0.20-0.23 m/s.
- Results (Change of Direction): Average time difference ~ -0.055s; MAE for speed ~0.13 m/s.
- Results (5-10-5 Test): Time difference ~0.05-0.09s; MAE for speed ~0.61 m/s.

Matches (and improves upon!) Traditional Timing Gates
We compared Ledsreact Pro with established timing gate systems (VALD SmartSpeed & Microgate Witty Gates) in a 30m sprint test involving 18 competitive handball players. Unlike timing gates that only capture split times at fixed points, Ledsreact Pro's radar technology maps the entire movement trajectory.
- Purpose & Comparison: Investigate correlation, bias, and precision of Ledsreact Pro V2 against VALD SmartSpeed and Microgate Witty timing gates during 30m sprint tests with pro athletes.
- Methodology: Data collected at 0m, 5m, 10m, and 30m. Statistical analysis included descriptive stats, Pearson correlation, and Bland-Altman analysis. Ledsreact used internal bias correction (see timing gates comparison for more).
- Key Findings (Overall 0-30m): Very high correlation (r > 0.95) between Ledsreact Pro and both timing gates, with small mean differences (Ledsreact Pro vs SmartSpeed: +0.026s; Ledsreact Pro vs Witty Gates: +0.011s).

High Correlation with Professional Athletics Laser System
Further validation was conducted against the TimeTronics laser system, a highly precise laser-based timing solution trusted by the Belgian Athletics Federation. This comparison underscores our commitment to accuracy by testing against systems used for official athletic timing.
- Benchmark Standard: Comparison against the TimeTronics Photofinish system, a recognized standard for official athletic timing.
- Commitment to Accuracy: Underscores Ledsreact's dedication by testing against high-precision systems used in demanding official scenarios.
- Validated Capability: Confirms Ledsreact Pro's capability for high-precision measurements essential for elite sports performance and official records.