String MD - I use an ERT 300 tennis computer to measure the dynamic tension on every string job. The ERT 300 measures the DYNAMIC TENSION DT (string bed stiffness) by electronic
![BEERS ERT 300 Tennis Computer- A Must Have for any Racquet Stringer & Tennis Enthusiast | The Tennis Depot Blog BEERS ERT 300 Tennis Computer- A Must Have for any Racquet Stringer & Tennis Enthusiast | The Tennis Depot Blog](https://thetennisdepot.files.wordpress.com/2014/03/kgrhqzhge2fw7bksybn5c0dfbr0_12.jpg)
BEERS ERT 300 Tennis Computer- A Must Have for any Racquet Stringer & Tennis Enthusiast | The Tennis Depot Blog
天麥-運動精品總代理- 熱騰騰的電子測磅器ERT 300已經到貨,來自瑞士的精湛科技,極度精密,穿線師的必備品,半年內免費送回瑞士原廠保固. 世界兩大指標性電子測磅器之一!! (1)提供線床密度測量(
![ERT 300 TENNIS COMPUTER - pomiar stanu naciągu - Szkoła Narciarska SUPERNARTY.pl - Jelenia Góra, Karpacz ERT 300 TENNIS COMPUTER - pomiar stanu naciągu - Szkoła Narciarska SUPERNARTY.pl - Jelenia Góra, Karpacz](http://old.supernarty.pl/img/zdjecia/tenis_ert300-dysk_600px.jpg)