ERT-300 / 張力計

henrylin424

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網球拍線張力測試器ERT 300(開箱)
ERT 300 Manual
The right tension for every type of player

Dynamic Tension DT ( DT-value) / DT is the string bed stiffness
DT is ball power in kilo pond required to depress the string bed 1 cm at the sweet spot(ball impact)
DT determines the playing characteristics power and control.
+ q+ j: U/ }( X0 O5 AHigher DT for more control / Lower DT for more power
Not recommended to play tennis when DT below 28
Restring the racquet when the DT-value has decreased by 10% to 20%

Lo     DT 28-34      Defensive play / Club
Mid    DT 35-41      Dynamic,offensive play / Club,WTA
# S) K3 ^" D" Q: P; {Hi      DT 42-46      Fast,aggressive play / Club , WTA , ATP
, ]' c: e7 s9 f" K/ @: [. @% N2 ?  L- Q1 m% WHi+    DT 47-54     Very fast,extremely aggressive play / ATP
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Within the first 2 to 4 hours after stringing, there is often a remarkable tension loss of 2 to 4 DT , called stabilization losses.

在stringforum左方DT database 選擇你的球拍,即可查到相關線種掉磅chart.
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henrylin424

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Gamma ATS ERT 300 Tenniscomputer
TW上售價169美金,海外運費36美金
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