BEERS Technic | ERT 300 Tenniscomputer: to measure the dynamic tension, power and control of your racket
String MD - With the ERT 300 Tenniscomputer, you'll know when it's time to restring your racquet. The display shows current stringbed stiffness (dynamic tension), indicating the power and aggressiveness of play
QUICK GUIDE ERT 300 TENNIS
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
Product Spotlight of the Week: Beers ERT 300 Tennis Computer | The Tennis Depot Blog