Proper belt installation is essential for optimum performance of V- and synchronous belt drives. Gates’ 508C sonic tension meter allows a simple and accurate tension measurement by analysing sound waves (natural frequencies) from the belt through the sensor. It processes the input signals and gives an accurate digital display of tension. This meter is compact, computerised and stores data for repetitive use measuring belt tension accurately time after time. Gates’ sonic tension meter is supplied with a handy instruction manual (E/20136).