The Gamma ERT 300 Tenniscomputer features new technology! Displays current string bed stiffness (dynamic tension), indicates the power and aggresiveness of play, and alerts when it is time to restring.
Provides highly precise measurement through an electronic simulation of the ball impact. Pocket-sized, cordless, and easy-to-use. Works with any racquet and string type. Microprocessor controlled, battery operated.
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