Gamma Tennis String Tension Tester

The GAMMA® String Tension Tester (STT) measures the relative tension in the strings in racquets. It does not usually relate directly to the tension that the stringer sets his machine. The large tension scale is easy to read. It is accurate at measuring tension loss over time and is a useful tool to determine when you should consider getting the racquet restrung. Just take a reading of the string tension when you get your racquet restrung and then test again over the next few weeks. You will get to know when the racquet isn’t playing right and the STT will confirm your suspicions.