Pay the necessary attention to how your racket is strung, because this determines 2/3 of your game. The technology of world class players from the Nr.1 innovator in racquet diagnostic systems. Weights 50gr. Deviation:± 0.2%.
HOW THE ERT 300 WORKS
1. The ERT 300 is clipped to the strings.
2. The start button is used to trigger automatic measurement. Electronic simulation of the ball impact measures and analyzes the vibrations of the strings.
3. After a few seconds, the values determined are shown on the LCD display.
4. Now use the DT system disc to determine the string dynamic tension in kp/cm.
