Q: How Do Zelocity™ Sport Performance Monitors Work?
A: Zelocity™ is the baseball and softball industry's only true ball velocity measuring device. Zelocity™ uses Doppler radar to emit radar pulses which creates a radar field. As the ball travels through the radar field, it bounces impulses back to the monitor, which measures the ball's actual velocity.

Q: Why is Zelocity™ Radar Well-Suited for Monitoring Baseball and Softball Performance?
A: Using radar, Zelocity™ monitors are immune from typical problems of monitoring player performance. Zelocity™ radar:

• Works in any and all lighting and atmospheric conditions
• Works for right-handed and left-handed players
• Can be used anywhere, anytime
• Works outdoors on the field or indoors in as little as 12 feet of hitting space
• Is completely portable
• Works without need for calibration
• Sets up simply, quickly
• Is reliable and accurate since data is measured, not estimated

Q: Why is Bat Speed at Impact Important?
A: Zelocity™ sets the standard for measuring bat speed by measuring at impact. The readings are both accurate and repeatable from hit to hit.

Q: How Does Zelocity™ Measure Ball Shot Distance?
A: Based on the radar signal returned from the ball in flight, Zelocity™ measures actual distance.

Q: What is the Power Transfer Ratio?
A: The exit speed divided by the bat speed expressed as a percentage is referred to as the Power Transfer Ratio Percentage (PTR%). This ratio indicates how solidly the ball is struck, i.e., how much energy is transferred from bat to ball. Zelocity™ gives a true and repeatable PTR% because it accurately measures both the ball and bat head speeds.