Pay the necessary attention to how your racket is strung, because this determines 2/3 of your game.
Only with a stringing tension that is optimally adapted to your style and strength of playing DYNAMIC TENSION DT (the effective playing tension of the string bed) it is possible to play successful tennis with no long-term fatigue or injuries.
You can rely on the ERT 300 tennis computer.
It enables you to do things which were previously only possible for world-class players.
You decide yourself:
Does your game require your racket to be strung rigidly or more flexibly?
Are your tournament rackets strung identically?
When does your racket need to be restrung?
The ERT 300 provides security during matches. Your racket is strung correctly. You can devote your full attention to your opponent and the game.
A serious stringer can use the ERT 300 to check his work precisely. It enables him to recognize the properties of the stringing material and the reliability of his stringing machine.
The ERT 300 forms part of a tennis teacher's professional equipment.
The ERT 300 allows specialist tennis dealers to demonstrate their competence, and to advise customers in a better, more individual manner. "...We have tested numerous measuring devices, but the ERT 300 was the only we were satisfied with!..."